The genus Batophila Foudras, 1860 (Coleoptera, Chrysomeliae, Galerucinae, Alticitae) in Taiwan, with descriptions of 11 new species

73 The genus Batophila Foudras, 1860 (Coleoptera, Chrysomeliae, Galerucinae, Alticitae) in Taiwan, with descriptions of 11 new species Chi-Feng Lee1 1 Applied Zoology Division, Taiwan Agricultural Research Institute, Taichung 413, Taiwan Corresponding author: Chi-Feng Lee ([email protected].tw) Copyright: © Chi-Feng Lee. This is an open access article distributed under terms of the Creative Commons Attribution License (Attribution 4.0 International – CC BY 4.0). Research Article Abstract The Taiwanese species of the genus Batophila Foudras, 1860 are revised. Batophila acutangula Heikertinger, 1921 is removed from the list of Taiwanese fauna. Batophila taiwanica Döberl, 2010 is recognized and redescribed. Additionally, eleven new species from Taiwan are described: B. alishanensis sp. nov., B. choui sp. nov., B. chungi sp. nov., B. houjayi sp. nov., B. huangi sp. nov., B. jungchani sp. nov., B. meihuai sp. nov., B. tsoui sp. nov., B. wusheensis sp. nov., B. yehi sp. nov., and B. yuae sp. nov. The species descriptions include illustrations of aedeagi, antennae, gonocoxae, abdominal ventrite VIII, and spermathecae. Key words: Host plant, leaf beetles, Melastomataceae, Polygonaceae, Rosaceae, Rubus, taxonomy Introduction The flea beetle genus Batophila Foudras, 1860 can be recognized easily by the combination of the following characters: general color metallic; anterior coxal cavities open posteriorly; dorsum not pubescent; pronotum evenly convex, without a distinct antebasal, transverse impression; elytron with reduced humeral calli, punctures arranged into 10 rows; hind wings absent; prosternum exceeding posterior margin of coxae; hind tibia with apical, simple spine; tarsomere III bilobed (Yang et al. 2015). This genus contains 30 species recorded from Oriental and Palearctic regions (Nadein 2013), 24 of them from the Palearctic (Bezděk and Konstantinov 2024). Chûjô (1937) initially recorded the genus from Taiwan based on B. yangweii Chen, 1933, which was synonymized with B. acutangula Heikertinger, 1921 by Heikertinger (1948). Döberl (2010) added the second species, B. taiwanica Döberl, 2010, to the Taiwanese fauna. Adults of the genus are common in various forest types and easily collected by sweeping. More than 3,400 specimens were available for study, including historical collections at several museums, and extensive collections made by the Taiwan Chrysomelid Research Team (TCRT) (Lee 2025). More than 3,000 specimens were collected and deposited at the Taiwan Agricultural Research Institute during 1979–1984. The collecting sites include a number of places along Provincial Highway 14A, including Academic editor: Ron Beenen Received: 2 July 2025 Accepted: 14 September 2025 Published: 3 November 2025 ZooBank: https://zoobank.org/ A66B00C6-E6E2-4FDD-A824474A280E740F Citation: Lee C-F (2025) The genus Batophila Foudras, 1860 (Coleoptera, Chrysomeliae, Galerucinae, Alticitae) in Taiwan, with descriptions of 11 new species. ZooKeys 1258: 73–118. https://doi.org/10.3897/ zookeys.1258.163900 ZooKeys 1258: 73–118 (2025) DOI: 10.3897/zookeys.1258.163900 74 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Wushe (霧社, 1250 m a.s.l.), Yu-shih (幼獅, 1750 m a.s.l.), Sungkang (松崗, 2100 m), Meifeng (梅峰, 2150 m a.s.l.), Tsuifeng (翠峰, 2300 m a.s.l.), and Tayuling (大禹嶺, 2560 m a.s.l.). Other sites include Alishan (阿里山, 2400 m a.s.l.), Tungpu (東埔, 1200 m a.s.l.), and Wufeng (五峰, 400 m a.s.l.). The true species diversity and distributions can now be presented based on sufficient material. Materials and methods For taxonomic study, abdomens of adults were separated from the forebodies and boiled in 10% KOH solution, followed by washing in distilled water to prepare genitalia for illustrations. The genitalia were then dissected from the abdomens, mounted on slides in glycerin, and studied and drawn using a Leica M165 stereomicroscope. For detailed examinations, a Nikon ECLIPSE 50i microscope was used. At least three males and females from each species were examined to delimit variability of diagnostic characters. For species collected from more than one locality or with color variations, at least one pair of each sex from each locality and color morph was examined. Length was measured from the anterior margin of the eye to the elytral apex, and width at the greatest width of the elytra. Nomenclature for morphological structures of adults follows Duckett and Daza (2004). Names of plant species follow the Taiwan Encyclopedia of Life (2024). Specimens studied herein are deposited at the following institutes and collections: KMNH Kitakyushu Museum of Natural History and Human History, Kitakyushu, Japan [Yûsuke Minoshima] MHNG Muséum d’Histoire Naturelle, Genève, Switzerland [Giulio Cuccodoro] NHMB Naturhistorisches Museum, Basel, Switzerland [Matthias Borer] NHMUK The Natural History Museum, London, UK [Michael F. Geiser] NMNS National Museum of Natural Science, Taichung, Taiwan [Bao-Cheng Lai] TARI Applied Zoology Division, Taiwan Agricultural Research Insitute, Taichung, Taiwan [Chi-Feng Lee] Exact label data are cited for all type specimens of described species; a double slash (//) divides the data on different labels and a single slash (/) divides the data in different rows. Other comments and remarks are in square brackets: [p] – preceding data are printed, [h] – preceding data are handwritten, [r] – red label, [w] – white label. Taxonomic account Batophila acutangula Heikertinger, 1921 Fig. 1A–C Batophila acutangula Heikertinger, 1921: 7. Batophila yangweii Chen, 1933: 250; Heikertinger, 1948: 53 (as synonym for B. acutangula). Type specimens examined. Lectotype ♂ (NHMB): “H. Frieb / Perewaja-Rjetsch / Ka-Tal, 7–8 km / nördlich von / Wladiwostok [h, w] // Batophila / acutangula 75 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan m. [h] / det. Heiktgr. [p, w] // Batoph. / acutang. / Type! [h, r] // 1953 Coll. / Heikertinger [p, w] // lectotype [h] / J. Bechyne det., 1956 [p, w]” Notes. Batophila acutangula Heikertinger, 1921 is not found in Taiwan although it was recorded from Taiwan previously (Chûjô 1937). Voucher Figure 1. Type specimens and labels A. Batophila acutangula Heikertinger, 1921, lectotype, dorsal view; B. Ditto, lateral view; C. Labels pinned with lectotype; D. B. taiwanica Döberl, 2010, holotype, dorsal view; E. Ditto, lateral view; F. Labels pinned with holotype. 76 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan specimens of B. yangweii (Chûjô 1937) are identified as B. houjayi sp. nov., B. huangi sp. nov., B. taiwanica Döberl, 2010, B. tsoui sp. nov., B. wusheensis sp. nov., and B. yuae sp. nov. Voucher specimens of B. acutangula (Kimoto 1971, 1989) are identified as B. alishanensis sp. nov., B. choui sp. nov., B. houjayi sp. nov., B. taiwanica Döberl, 2010. Several subspecies of B. acutangula in Japan were synonymized by Kimoto (1966); however, they may represent valid species since their aedeagi are different in shape, as illustrated by Kimoto (1966). Batophila alishanensis sp. nov. https://zoobank.org/54992EF9-7381-4B29-91DD-F31FEE2343D3 Figs 2, 3, 4 Batophila acutangula: Kimoto 1989: 269 (part). Type specimens examined (n = 47). Holotype ♂ (TARI): Taiwan • Chiayi: Alishan (阿里山), 17–20.VIII.1982, leg. K. C. Chou & C. C. Pan. Paratypes • 9♂, 8♀ (TARI), same data as holotype; 1♀ (KMNH), same locality, 5.V.1971, leg. K. Kamiya; • 1♂, 1♀ (KMNH), same but with “25.V.1971"; 1♂, 2♀♀ (KMNH), same but with “26.V.1971"; • 2♂♂, 2♀♀ (KMNH), same locality, 22–25.VI.1974, leg. M. Owada; • 4♂♂, 9♀♀ (TARI), same locality, 5–9.VIII.1981, leg. L. Y. Chou & S. C. Lin; • 1♂, 1♀ (KMNH), same locality, 7.IX.1986, leg. K. Baba, identified as B. acutangula by Kimoto (1989); • 1♂ (KMNH), same locality, 6.VIII.1990, leg. S. Kimoto; • Chiayi: 1♂, 3♀♀ (NMNS), Lulinshan (鹿林山), 18.V.1991, leg. C. C. Chiang; • Nantou: 1♀ (TARI), Niitakayama (= Yushan, 玉山), 17.VII.1941, leg. S. Miyamoto; • 1♀ (TARI), Tatachia (塔塔加), 16–23.VI.2007, leg. C.-S. Tung. Diagnosis. Adults of B. alishanensis sp. nov. are similar to those of B. wusheensis sp. nov., B. houjayi sp. nov. (Figs 10, 12), B. yuae sp. nov., B. jungchani sp. nov., and B. huangi sp. nov. (Fig. 16) in possessing truncate elytral apices. It can be recognized easily by fine punctures on elytra (Fig. 2). The aedeagus of this new species is similar to that of the sympatric species B. houjayi sp. nov. but differs by the wider subapical area (Fig. 3C) [apically narrow aedeagus in B. houjayi sp. nov. (Fig. 11C)]. Description. Male. Length 1.44–1.61 mm, width 0.74–0.80 mm. General color metallic dark bronze (Fig. 2A–C); legs yellowish but hind femora darkened. Antenna (Fig. 3A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.5: 0.5: 0.8: 0.6: 0.7: 0.7: 0.6: 0.6: 0.9; ratio of length to width of antennomeres I–XI 2.9: 2.5: 2.3: 2.5: 3.4: 2.5: 2.4: 2.4: 1.9: 1.9: 2.6. Pronotum 1.19–1.25× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles 1.13–1.17× wider than basal margin. Elytra 1.27–1.30× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of fine punctures and with indistinct longitudinal grooves along lines present near base and sides. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 3C, D) elongate, 5.8× longer than wide; narrowest at apical 1/3, apically widened towards apical 1/7 and then narrowed, apex widely rounded, basally widened near base; dorsal opening starting from apical 1/10 and 77 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan basally membranous, tectum composed of two lobes, mostly membranous; slightly curved in lateral view; ventral surface with membranous area narrower than dorsal opening, starting from apical 1/10 to 2/5. Female (Fig. 2D–F). Length 1.75–1.93 mm, width 0.85–0.96 mm. Antennae similar to males, ratio of length of antennomeres I–XI to length of antennomere Figure 2. Habitus of Batophila alishanensis sp. nov. A. Male, paratype, dorsal view; B. Ditto, ventral view; C. Ditto, lateral view; D. Female, paratype, dorsal view; E. Ditto, ventral view; F. Ditto, lateral view. 78 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan I (Fig. 3B) 1.0: 0.6: 0.5: 0.5: 0.7: 0.6: 0.7: 0.7: 0.6: 0.6: 0.9; ratio of length to width of antennomere I–XI 2.6: 2.3: 2.4: 2.3: 2.8: 2.2: 2.2: 2.1: 1.8: 1.9: 2.5. Elytra 1.37–1.38× longer than wide; lateral margins rounded, widest at basal 1/3, apex truncate; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of fine punctures and with indistinct longitudinal grooves along lines, reduced in some individuals. Gonocoxae (Fig. 3F) slender, connected with each other at basal 1/5; each gonocoxa with seven long setae and one tiny seta from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 3E) weakly sclerotized apically, with several short setae at apical area, and some tiny setae at apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 3G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Food plants. Rosaceae: Rubus sp. Etymology. This new species is named after its type locality, Alishan (阿里山). Distribution. Only known from the abovementioned localities, which are alpine habitats in southern Taiwan (Fig. 4). Figure 3. Batophila alishanensis sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 79 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Batophila choui sp. nov. https://zoobank.org/96FCCE48-AD8C-4E36-BFA8-14DCAD085CE2 Figs 5, 6, 7 Batophila acutangula: Kimoto 1971: 269 (part). Type specimens examined (n = 558). Holotype ♂ (TARI). Taiwan • Nantou: Meifeng (梅峰), 7–9.V.1981, leg. K. S. Lin & S. C. Lin. Paratypes • Hualien: 1♂, 1♀ (TARI), Tayuling (大禹嶺), 9–16.VI.1980, leg. K. S. Lin & B. H. Chen; • Nantou: 11♂♂, 7♀♀ (TARI), Meifeng (梅峰), 10.V.1979, leg. K. C. Chou; • 1♂, 2♀♀ (TARI), same locality, 18.VII.1979, leg. K. C. Chou; • 6♂♂, 8♀♀ (TARI), same locality, 2–4. VI.1980, leg. L. Y. Chou & C. C. Chen; • 6♂♂, 9♀♀ (TARI), same locality, 8.VI.1980, leg. K. S. Lin & B. H. Chen; • 3♂♂, 9♀♀ (TARI), same locality, 26.VIII.1980, leg. K. S. Lin & C. H. Wang; • 1♂, 1♀ (TARI), same locality, 5–9.X.1980, leg. C. C. Chen & C. C. Chien; • 25♂♂, 18♀♀ (TARI), same locality, 7–9.V.1981, leg. K. S. Lin & S. C. Lin; • 49♂♂, 25♀♀ (TARI), same locality, 24–26.VI.1981, leg. K. S. Lin & W. S. Tang; • 6♂♂, 6♀♀ (TARI), same locality, 28–29.VIII.1981, leg. L. Y. Chou & S. C. Lin; • 6♂♂, 1♀ (TARI), same locality, 22.V.1982, leg. L. Y. Chou; • 33♂♂, 22♀♀ (TARI), Figure 4. Distribution map of Batophila species, solid line: 1000 m a.s.l., broken line: 2000 m a.s.l., black areas: 3000 m a.s.l. Red dots B. alishanensis sp. nov. Purple dots B. taiwanica Döberl Green dots B. yehi sp. nov. Brown dots B. meihuai sp. nov. 80 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan same locality, 15.VII.1982, S. C. Lin & C. N. Lin; • 9♂♂, 13♀♀ (TARI), same locality, 31.VIII.–2.IX.1982, leg. L. Y. Chou & K. C. Chou; • 45♂♂, 25♀♀ (TARI), same locality, 4–7.X.1982, leg. K. C. Chou; 1♀ (TARI), same locality, 19–21.IV.1983, leg. K. C. Chou & S. P. Huang; • 5♂♂, 1♀ (TARI), same locality, 30.VII.1983, leg. L. Y. Chou; • 1♂, 2♀♀ (TARI), same locality, 8–11.V.1984, leg. K. C. Chou & C. C. Pan; • 1♂ (TARI), same locality, 23.VII.1984, leg. K. S. Lin; • 1♀ (NMNS), same locality, 9.I.–6. II.2007, leg. C. S. Lin & W. T. Yang, Malaise trap; • 2♂♂, 4♀♀ (TARI), same locality, 20.IV.2025, leg. C.-F. Lee; • 17♂♂, 5♀♀ (TARI), Sungkang (松崗), 15–17.VIII.1984, Figure 5. Habitus of Batophila choui sp. nov. A. Male, paratype, dorsal view; B. Ditto, ventral view; C. Ditto, lateral view; D. Female, paratype, dorsal view; E. Ditto, ventral view; F. Ditto, lateral view. 81 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan leg. K. C. Chou; • 10♂♂, 5♀♀ (TARI), same locality, 13–15.IX.1984, leg. K. S. Lin & S. C. Lin; • 2♂♂, 2♀♀ (KMNH), same locality, 2.VIII.1990, leg. S. Kimoto, of which one male and one female identified as B. acutangula by Kimoto in 1990; • 1♂, 1♀ (TARI), same locality, 20.IV.2011, leg. C.-F. Lee; • 4♂, 2♀ (KMNH), Sungkang (松 崗) – Tsifen (sic!) (翠峰), 29.VI.1965, leg. S. Kimoto, identified as B. acutangula by Kimoto (1971); • 1♀ (NHMUK), (near Sungkang, 松崗) sheep farm, 24°03.121'N, 121°09.643'E, 1916 m, 7.VIII.2008, leg. M. V. L. Barclay & Mendel; • 4♂♂, 1♀ (TARI), Tsuifeng (翠峰), 21.VI.1979, leg. K. S. Lin & B. H. Chen; • 4♀♀ (TARI), same locality, 3.VI.1980, leg. L. Y. Chou & C. C. Chen; • 45♂♂, 28♀♀ (TARI), same locality, 25–27.VI.1981, leg. K. S. Lin & W. S. Tang; • 10♂♂, 3♀♀ (TARI), same locality, 1–3.VIII.1981, leg. T. Lin & W. S. Tang; • 1♂, 1♀ (TARI), same locality, 27.VIII.1981, leg. L. Y. Chou & S. C. Lin; • 1♂, 1♀ (TARI), same locality, 23.V.1982, leg. L. Y. Chou; • 4♂♂, 4♀♀ (TARI), same locality, 1–3.IX.1982, leg. L. Y. Chou & K. C. Chou; • 3♀♀ (TARI), same locality, 20.IV.1983, leg. K. C. Chou & S. P. Huang; • 1♂ (TARI), same locality, IV.1984, Malaise trap, leg. K. S. Lin & K. C. Chou; • 1♂ (TARI), same but with “V.1984"; • 5♂♂ (TARI), same locality, 5.VIII.1984, leg. K. S. Lin; • 3♂♂ (TARI), same locality, 15–16.VIII.1984, leg. K. C. Chou; • 1♂, 5♀ (TARI), same locality, 12–14. IX.1984, leg. K. S. Lin & S. C. Lin; • 1♀ (TARI), Yu-shih (幼獅), 4.VIII.1981, leg. T. Lin & W. S. Tang; • Taichung: 1♂ (TARI), Anmashan (鞍馬山), 6–7.VII.1979, leg. L. Y. Chou; • 1♀ (TARI), same but with “6–9.VII.1979"; • 1♀ (NMNS), same locality, 1.V.1990, leg. C. C. Chiang; • 2♀♀ (TARI), same locality, 21.IV.2010, leg. C.-F. Lee; • 8♀♀ (TARI), Chiapaotai (佳保台)—Liming (黎明), 4.VI.1942, leg. S. Issiki. Diagnosis. Adults of B. choui sp. nov., B. chungi sp. nov., and B. tsoui sp. nov. are recognized by their strongly apically narrowed elytra, and divergent elytral apex. They differ by the presence of convex elytra and elytral apices not visible in dorsal view in both sexes (Fig. 5C, E) [flattened elytra in males but convex elytra in females of B. chungi sp. nov. and B. tsoui sp. nov. (Fig. 21C, E)], and parallel-sided aedeagus (Fig. 6C) [widened apex of aedeagus in B. chungi sp. nov. (Fig. 8C) and B. tsoui sp. nov. (Fig. 22C)]. Description. Male. Length 1.99–2.18 mm, width 0.83–0.90 mm. General color metallic dark bronze (Fig. 5A–C); legs yellowish but femora of hind legs darkened. Antenna (Fig. 6A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.6: 0.6: 0.8: 0.7: 0.7: 0.7: 0.7: 0.7: 0.9; ratio of length to width of antennomeres I–XI 2.8: 2.3: 2.6: 2.9: 3.4: 2.6: 2.8: 2.6: 2.1: 2.1: 2.3. Pronotum 1.13–1.14× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emargination, slightly and basally narrowed, distance between anterolateral angles 1.11–1.17× wider than basal margin. Elytra 1.52–1.54× longer than wide; lateral margins rounded, widest at basal 1/5, apically and strongly narrowed, apex truncate but diverge; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of extremely coarse punctures and with distinct longitudinal grooves along punctures, punctures and grooves apically abbreviated from apical 1/3. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 6C, D) elongate, 6.0× longer than wide; parallel-sided, apex widely rounded; dorsal opening starting from apical 1/10–1/3, tectum composed of three lobes, median lobe more basal relative to lateral lobes, apical margin truncate, mostly membranous; slightly curved in lateral view, apex moderately curved; ventral surface with membranous area wider than dorsal opening, starting from apical 1/12–1/2. 88 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Kimoto (1989); • Nantou: 1♀ (TARI), Huakang (華崗), 14.IX.2010, leg. C.-F. Lee; • 1♂, 1♀ (NMNS), Kahoershan (卡賀爾山), 7.V.1992. leg. W. T. Yang; • 1♂ (NMNS), Lienhuachih (蓮華池), 9.IV.–19.V.1998, leg. C. S. Lin & W. T. Yang; • 1♂ (KMNH), Lushan Wenchuan (廬山溫泉), 6.VI.1976, leg. H. Makihara; • 7♂♂, 16♀♀ (NMNS), Nanhuashan (南華山), 6.V.1992, leg. Yang & Huang; • 1♂ (NHMUK), (near Sungkang, 松崗) sheep farm, 24°03.121'N, 121°09.643'E, 1916 m, 7.VIII.2008, leg. M. V. L. Barclay & Mendel; • 1♂, 2♀♀ (TARI), Tatachia (塔塔加), 29.X.2009, leg. H. Lee; • 1♂ (TARI), same locality, 17.XI.2009, leg. C.-F. Lee; • 1♀ (TARI), same locality, 18.XI.2009, leg. H. Lee; • 3♂♂, 14♀♀ (TARI), Tsuifeng (翠峰), 21.VI.1979, leg. K. S. Lin & B. H. Chen; • 8♀♀ (TARI), same locality, 3.VI.1980, leg. L. Y. Chou & C. C. Chen; • 4♂♂, 35♀♀ (TARI), same locality, 25–27.VI.1981, leg. K. S. Lin & W. S. Tang; • 32♂♂, 90♀♀ (TARI), same locality, 1–3.VIII.1981, leg. T. Lin & W. S. Tang; • 1♂, 1♀ (TARI), same locality, 8.XI.1981, leg. S. C. Lin & W. S. Tang; • 2♂♂, 2♀♀ (TARI), same locality, 23.V.1982, leg. L. Y. Chou; • 33♂♂, 66♀♀ (TARI), same locality, 1–3.IX.1982, leg. L. Y. Chou & K. C. Chou; • 3♀♀ (TARI), same locality, Figure 11. Batophila houjayi sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 89 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan 20.IV.1983, leg. K. C. Chou & S. P. Huang; • 1♀ (TARI), same locality, IV.1984, Malaise trap, leg. K. S. Lin & K. C. Chou; • 6♂♂, 17♀♀ (TARI), same locality, 9.V.1984, leg. K. C. Chou & C. C. Pan; • 6♂♂, 29♀♀ (TARI), same locality, 5.VIII.1984, leg. K. S. Lin; • 13♂♂, 26♀♀ (TARI), same locality, 12–14.IX.1984, leg. K. S. Lin & S. C. Lin; • 4♂♂, 1♀ (NMNS), Yuanfeng (鳶峰), 9.III.–9.IV.1998, leg. C. S. Lin & W. T. Yang, Malaise trap; • 5♂♂, 5♀♀ (NMNS), same but with “12.III.–9.IV.2002"; • 2♂♂, 2♀♀ Figure 12. Habitus of Batophila houjayi sp. nov., from Alishan (阿里山) A. Male, paratype, dorsal view; B. Ditto, ventral view; C. Ditto, lateral view; D. Female, paratype, dorsal view; E. Ditto, ventral view; F. Ditto, lateral view. 90 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan (NMNS), same but with “9.IV.–7.V.2002"; • 2♀♀ (NMNS), same but with “11.VI.– 9.VII.2002"; • 1♂, 2♀♀ (NMNS), same but with “17.IV.–7.V.2003"; • 1♀ (NMNS), same but with “11.VI.–8.VII.2003"; • 3♀♀ (NMNS), same but with “11.V.–13. VII.2004"; • 1♀ (NMNS), same but with “13.III.–10.IV.2007"; • 6♀♀ (NMNS), Yunhaipaohsienso (雲海保線所), 4.V.1992, leg. W. T. Yang; • 1♀ (KMNH), Yushan (玉 山), 19.V.1981, leg. N. Ito, identified as B. acutangula by Kimoto in 1987. Diagnosis. Adults of B. houjayi sp. nov. are not separable from those of B. wusheensis sp. nov., B. yuae sp. nov., B. jungchani sp. nov., and B. huangi sp. nov. that are characterized by truncate elytral apices based on external morphology except for the aedeagus (see below). However, these species can be recognized by their allopatric distributions [B. houjayi sp. nov. inhabits high mountains in Chiayi, Ilan, Hualien, and Nantou counties, B. wusheensis sp. nov. in lowlands of Nantou County, B. yuae sp. nov. in lowlands of Taipei and New Taipei Cities, and Ilan County, B. jungchani sp. nov. in high mountains of Taichung and Miaoli counties, B. huangi sp. nov. in lowlands of Miaoli County and high mountains in Hsinchu and Taoyuan counties (Fig. 13)]. Aedeagal shapes Figure 13. Distribution map of Batophila species, solid line: 1000 m a.s.l., broken line: 2000 m a.s.l., black areas: 3000 m a.s.l. Red dots B. yuae sp. nov. Blue dots B. wusheensis sp. nov. Green dot B. jungchani sp. nov. Pink dots B. houjayi sp. nov. Purple dots B. huangi sp. nov. 91 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan are diagnostic [widely rounded apex of aedeagus in B. houjayi sp. nov. (Fig. 11C), apically tapering aedeagus from apical 1/5 in B. wusheensis sp. nov. (Fig. 23C), rounded apex of aedeagus with truncate process at middle of apical margin in B. yuae sp. nov. (Fig. 26C), subapically tapering apex of aedeagus in B. jungchani sp. nov. (Fig. 15C), and rounded apex of aedeagus with small, rounded process at middle of apical margin in B. huangi sp. nov. (Fig. 14C)]. Description. Male. Length 1.63–1.92 mm, width 0.82–0.94 mm. General color metallic dark bronze (Fig. 10A–C); antennae yellowish brown but six apical antennomeres darker; legs yellowish but femora of hind legs darkened. Antenna (Fig. 11A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.5: 0.5: 0.6: 0.6: 0.6: 0.6: 0.6: 0.6: 0.8; ratio of length to width of antennomeres I–XI 2.6: 2.1: 2.2: 2.3: 2.6: 2.2: 2.0: 1.8: 1.7: 1.6: 2.3. Pronotum 1.22–1.30× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles 1.10–1.17× wider than basal margin. Elytra 1.28–1.34× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of coarse punctures, and distinct longitudinal grooves along punctures apically abbreviated, ridges present between longitudinal grooves and apically abbreviated from basal 1/3. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 11C, D) elongate, 5.7× longer than wide; lateral margins subapically parallel, then slightly widened basally, widest at basal 1/3, apex widely rounded; dorsal opening starting from apical 1/10–2/5, tectum membranous; moderately curved in lateral view; ventral surface with membranous area narrower than dorsal opening, starting from apical 1/20–1/3. Females (Fig. 10D–F). Length 1.79–2.21 mm, width 0.96–1.10 mm. Antennae similar to males, ratio of length of antennomeres I–XI to length of antennomere I (Fig. 11B) 1.0: 0.6: 0.5: 0.5: 0.6: 0.5: 0.6: 0.6: 0.6: 0.6: 0.8; ratio of length to width of antennomeres I–XI 2.9: 2.2: 2.5: 2.2: 3.0: 2.3: 2.2: 1.8: 1.8: 1.7: 2.4. Elytra 1.26– 1.38× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally convex, elytral apex not visible in dorsal view; disc with longitudinal lines of fine punctures, and distinct longitudinal grooves along punctures apically abbreviated from apical 1/3, ridges present between 2nd and 3rd, 4th and 5th longitudinal grooves and apically abbreviated from basal 1/3. Gonocoxae (Fig. 11F) slender, connected from basal 1/5 to base; each gonocoxa with seven long setae and one tiny seta from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 11E) weakly sclerotized apically, with several short setae at sides of apex, and some tiny setae at sides of apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 11G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Variation. Longitudinal ridges on elytra present in most individuals from Alishan (Fig. 12) but absent in specimens from other areas. Food plants. Rosaceae: Rubus lambertianus Ser. and R. croceacanthus H. Lév.; Polygonaceae: Persicaria thunbergia Sieb. et Zucc. and P. chinense L. (Fig. 9C). Etymology. This new species is named for Hou-Jay Chen (陳厚潔), the first member of TCRT to collect specimens. Distribution. This species is widespread in mountainous areas of south and central Taiwan (Fig. 13). 92 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Batophila huangi sp. nov. https://zoobank.org/3D4EAF0C-A47A-43F0-94D2-9AE69C825FBD Fig. 14 Batophila yangweii: Chûjô 1937: 54 (part). Type specimens examined (n = 22). Holotype ♂ (NMNS). Taiwan • Miaoli: Taian (泰安), 20.XII.1989, leg. K. W. Huang. Paratypes • 8♂♂, 3♀♀ (NMNS), same data as holotype; Hsinchu: • 2♂♂ (TARI), Talulintao (大鹿林道), 17.II.2008, leg. M.-H. Tsou; 1♂ (TARI), Wufeng (五峰), 14–16.VII.1982, leg. K. C. Chou & C. C. Pan; • 1♂ (NMNS), same locality, 21.XII.1989, leg. K. W. Huang; • Taoyuan: 1♂ (TARI), Kayahara (= Hsuanyuan, 萱源), 23.VII.1929, leg. Y. Miwa, identified as B. yangweii by Chûjô (1937); • 1♂, 1♀ (TARI), Lalashan (拉拉山), 8.III.2009, leg. H. Lee; • 1♂ (TARI), same but with “leg. H.-J. Chen”; • 1♀ (TARI), same but with “leg. C.-F. Lee”; • 1♀ (NMNS), Upper Plain (sic!) (= Balung, 上巴陵), 24°41'12.1"N, 121°23'39.3"E, 600 m, 11.IV.1998, leg. Miller, Stange, Wang. Diagnosis. Adults of B. huangi sp. nov. are not separable from those of B. houjayi sp. nov., B. wusheensis sp. nov., B. yuae sp. nov., and B. jungchani sp. nov. that are characterized by truncate elytral apices based on external morphology (Figs 10, 12) except for the aedeagus (see below). However, these species can be recognized by their allopatric distributions [B. huangi sp. nov. inhabits lowlands in Miaoli County and high mountains in Hsinchu and Taoyuan counties, B. jungchani sp. nov. in high mountains in Taichung and Miaoli counties, B. yuae sp. nov. in lowlands of Taipei and New Taipei Cities, and Ilan County, B. wusheensis sp. nov. in lowlands of Nantou County, B. houjayi sp. nov. at high mountains in Chiayi, Ilan, Hualien, and Nantou counties (Fig. 13)]. Aedeagal shapes are diagnostic [rounded apex of aedeagus with small, rounded process at middle of apical margin in B. huangi sp. nov. (Fig. 14C), apically tapering apex of aedeagus from apical 1/10 in B. jungchani sp. nov. (Fig. 15C), rounded apex of aedeagus with truncate process at middle of apical margin in B. yuae sp. nov. (Fig. 26C), apically tapering aedeagus from apical 1/5 in B. wusheensis sp. nov. (Fig. 23C), and widely rounded apex of aedeagus in B. houjayi sp. nov. (Fig. 11C)]. Description. Male. Length 1.52–1.75 mm, width 0.77–0.86 mm. General color metallic dark bronze; antennae yellowish brown but six apical antennomeres darker; legs yellowish but femora of hind legs darkened. Antenna (Fig. 14A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.6: 0.6: 0.7: 0.6: 0.8: 0.7: 0.6: 0.6: 0.9; ratio of length to width of antennomeres I–XI 2.4: 2.5: 2.5: 2.5: 3.2: 2.5: 2.7: 2.1: 1.8: 1.8: 2.7. Pronotum 1.18–1.25× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles 1.17–1.18× wider than basal margin. Elytra 1.35–1.37× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of coarse punctures, and indistinct longitudinal grooves along punctures, lacking ridges present between longitudinal grooves. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 14C, D) elongate, 5.3× longer than wide; lateral margins basally and slightly widened, widest near base, apex widely rounded and with small rounded process at middle of apical margin; dorsal opening starting from apical 1/10, basally weakly sclero- 93 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan tized; tectum composed of three lobes, median lobe more ventral relative to lateral lobes and apical margin truncate, mostly membranous; moderately curved subapically and medially in lateral view; ventral surface with membranous area same width and height as dorsal opening, starting from apical 1/10–1/2. Female. Length 1.97–2.19 mm, width 1.00–1.06 mm. Antennae similar to males, ratio of length of antennomeres I–XI to length of antennomere I (Fig. 14B) 1.0: 0.6: 0.5: 0.5: 0.6: 0.6: 0.6: 0.6: 0.6: 0.6: 0.8; ratio of length to width of antennomeres I–XI 3.2: 2.3: 2.6: 2.6: 3.0: 2.6: 2.3: 2.1: 2.1: 1.8: 2.6. Elytra 1.36–1.39× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of coarse punctures, and indistinct longitudinal grooves along punctures, lacking ridges present between longitudinal grooves. Gonocoxae (Fig. 14F) slender, connected from basal 1/5 to base; each gonocoxa with seven long setae and one tiny seta from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 14E) weakly sclerotized apically, with several short setae at sides of apex, and Figure 14. Batophila huangi sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 94 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan some tiny setae at sides of apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 14G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Food plants. Rosaceae: Rubus sp. Etymology. This new species is named for Dr. Kun-Wei Huang (黃坤煒), who was a former research scientist at the NMNS and collected most of the type specimens. Distribution. This species is widespread in mountainous areas of northwestern Taiwan (Fig. 13). Batophila jungchani sp. nov. https://zoobank.org/0B81AB2D-59CC-4E7E-9152-21A4EA66F560 Fig. 15 Type specimens examined (n = 36). Holotype ♂ (NMNS). Taiwan • Taichung: Anmashan (鞍馬山), 3.V.1992, leg. C. Y. Li. Paratypes • 3♂♂, 12♀♀ (NMNS), same data as holotype; • 1♂, 1♀ (NMNS), same locality, 3.V.1990, leg. C. C. Chiang; • 5♀♀ (TARI), same locality, 21.IV.2010, leg. C.-F. Lee; • Miaoli: 1♂ (TARI), Hsiaopangchih (小胖池), 28.VIII.2021, leg. Y.-F. Hsu; • 4♂♂, 4♀♀ (TARI), same but with “16.XI.2021–21.IV.2022"; • Taichung: 2♂♂ (TARI), Hsuehshan ( 雪山), 24°23'15"N, 121°11'55"E, 29.IV.–28.VI.2012, leg. L.-P. Hsu; • 2♀♀ (TARI), Tahsuehshan (大雪山), 18.IV.2011, leg. J.-C. Chen. Diagnosis. Adults of B. jungchani sp. nov. are not separable from those of B. houjayi sp. nov., B. wusheensis sp. nov., B. yuae sp. nov., and B. huangi sp. nov. that are characterized by truncate elytral apices based on external morphology (Figs 10, 12) except for the aedeagus (see below). However, these species can be recognized by their allopatric distributions [B. jungchani sp. nov. inhabits high mountains in Taichung and Miaoli counties, B. yuae sp. nov. in lowlands of Taipei and New Taipei Cities, and Ilan County, B. wusheensis sp. nov. in lowlands of Nantou County, B. houjayi sp. nov. in high mountains in Chiayi, Ilan, Hualien, and Nantou counties, B. huangi sp. nov. in lowlands of Miaoli County and high mountains of Hsinchu and Taoyuan counties (Fig. 13)]. Aedeagal shapes are diagnostic [apically tapering aedeagus from apical 1/10 in B. jungchani sp. nov. (Fig. 15C), rounded apex of aedeagus with truncate process at middle of apical margin in B. yuae sp. nov. (Fig. 26C), apically tapering aedeagus from apical 1/5 in B. wusheensis sp. nov. (Fig. 23C), widely rounded apex of aedeagus in B. houjayi sp. nov. (Fig. 11C), and rounded apex of aedeagus with small, rounded process at middle of apical margin in B. huangi sp. nov. (Fig. 14C)]. Description. Male. Length 1.93–2.01 mm, width 0.94–0.97 mm. General color metallic dark bronze; antennae and legs reddish brown. Antenna (Fig. 15A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.6: 0.6: 0.7: 0.7: 0.8: 0.7: 0.7: 0.6: 0.9; ratio of length to width of antennomeres I–XI 2.7: 2.3: 2.6: 2.4: 3.0: 2.7: 2.4: 2.3: 2.2: 2.1: 3.0. Pronotum 1.22–1.25× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles 1.14–1.15× wider than basal margin. Elytra 1.31–1.35× longer than wide; lateral margins 95 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan rounded, widest at basal 1/5, apex truncate; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of coarse punctures, and distinct longitudinal grooves along punctures, punctures and grooves apically abbreviated, lacking ridges present between longitudinal grooves. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 15C, D) elongate, 6.4× longer than wide; parallel-sided, apically tapering from apical 1/10; moderately curved in lateral view; dorsal opening starting from apical 1/15, basally weakly sclerotized; tectum composed of three lobes, median lobe more ventral relative to lateral lobes and apical margin truncate, mostly membranous; moderately curved subapically and medially in lateral view; ventral surface with membranous area same width and height as dorsal opening, starting from apical 1/15 to 1/3. Female. Length 2.20–2.34 mm, width 1.06–1.17 mm. Antennae similar to males, ratio of length of antennomeres I–XI to length of antennomere I (Fig. 15B) 1.0: 0.6: 0.5: 0.6: 0.7: 0.6: 0.7: 0.7: 0.7: 0.6: 0.9; ratio of length to width of antennomeres I–XI 2.9: 2.5: 2.6: 3.0: 3.6: 2.8: 2.9: 2.5: 2.2: 2.0: 2.6. Elytra 1.32–1.38× Figure 15. Batophila jungchani sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 96 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of coarse punctures, and indistinct longitudinal grooves along punctures, lacking ridges present between longitudinal grooves. Gonocoxae (Fig. 15F) slender, connected from basal 1/5 to base; each gonocoxa with seven long and one tiny setae from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 15E) weakly sclerotized apically, with several short setae at sides of apex, and some tiny setae at sides of apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 15G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Variation. Some individuals have reddish-brown elytra, especially from Anmashan (鞍馬山) (Fig. 16). Food plants. Unknown. Etymology. This new species is named for Jung-Chan Chen (陳榮章), the first person to collect specimens. Distribution. This species is widespread in alpine areas of central Taiwan (Fig. 13). Batophila meihuai sp. nov. https://zoobank.org/6CB4AAAB-B575-4854-ACBF-FCA0BD610C15 Fig. 17, 18 Type specimens examined (n = 14). Holotype ♂ (TARI). Taiwan • Ilan: Ssuyuan (思 源), 25.IV.2009, leg. C.-F. Lee. Paratypes • 2♂♂, 1♀ (TARI), same data as holotype; • 4♂♂, 4♀♀ (TARI), same locality, 28.IV.2009, leg. M.-H. Tsou; • 1♂♂ (TARI), same Figure 16. Habitus of Batophila jungchani sp. nov., female, paratype, from Anmashan (鞍馬山) A. Dorsal view; B. Ventral view; C. Lateral view. 97 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan locality, 31.VII.2009, leg. H.-J. Chen; • Taichung: 1♂♂ (NMNS), same locality (= Ssuyuanyakou, 思源啞口), 25.VI.2007, leg. P. H. Chan & W. L. Lien. The type locality “Ssuyuan” is located at the border between Ilan County and Taichung County. Diagnosis. Adults of B. meihuai sp. nov. are similar to those of B. taiwanica Döberl and B. yehi sp. nov. in possessing convergent elytral apices. However, adults of B. yehi sp. nov. are recognized by their stout antennae, length of antennomeres VI–X 0.5× length of antennomere I (Fig. 15A, B) [> 0.5× in B. taiwanica Figure 17. Habitus of Batophila meihuai sp. nov. A. Male, paratype, dorsal view; B. Ditto, ventral view; C. Ditto, lateral view; D. Female, paratype, dorsal view; E. Ditto, ventral view; F. Ditto, lateral view. 104 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Batophila tsoui sp. nov. https://zoobank.org/20C50E88-25E5-4D8D-81CA-70F628403ABD Figs 21, 22 Batophila acutangula: Kimoto 1989: 269 (part). Batophila yangweii: Chûjô 1937: 54 (part). Type specimens examined (n = 178). Holotype ♂ (TARI): Taiwan • Kaohsiung: Chuyunshan logging trail (出雲山林道), 24.III.2009, leg. C.-F. Lee. Paratypes. 3♂♂, 7♀♀ (TARI), same data as holotype; Taiwan • Chiayi: 1♂, 1♀ (TARI), Arisan (= Alishan, 阿里山), 10.X.1912, leg. I. Nitobe, both identified as B. yangweii by Chûjô (1937); • 1♀ (TARI), same locality, 2–23.X.1918, leg. J. Sonan, identified as B. yangweii by Chûjô (1937); • 1♀ (TARI), same locality, 10.VI.1940, leg. M. Chujo; • 1♂, 1♀ (KMNH), same locality, 9.IV.1965, leg. Y. Hirashima, the female identified as B. acutangula in 1975; • 1♂, 1♀ (KMNH), same locality, 17.V.1968, leg. B.-S. Chang, both identified as B. acutangula by Kimoto in 1973; • 1♀ (KMNH), same locality, 5.V.1971, leg. K. Kamiya; • 1♀ (KMNH), same but with “21.V.1971”; • 3♀♀ (KMNH), same but with “26.V.1971”, of which one is identified as B. acutangula by Kimoto in 1971 ; • 1♂ (KMNH), same locality, 22–25. VI.1974, leg. M. Owada; • 7♂♂, 4♀♀ (TARI), same locality, 5–9.VIII.1981, leg. L. Y. Chou & S. C. Lin; • 7♂♂, 4♀♀ (TARI), same locality, 17–20.VIII.1982, leg. K. C. Chou & C. C. Pan; • 1♀ (NMNS), Fenchifu (奮起湖), 14.XII.1988, leg. K. W. Huang; • Kaohsiung: 1♀ (TARI), Erchituan (二集團), 8.III.2013, leg. B.-X. Guo; • 1♂ (TARI), Shihshan (石山), 30.XII.2008–6.I.2009, leg. C.-T. Yao; • 4♂♂, 4♀♀ (KMNH), same locality (= Shyk Shan), 25.IV.1986, leg. K. Baba, identified as B. acutangula by Kimoto (1989); • 3♀♀ (TARI), Shihshan logging trail (石山林道), 24.III.2009, leg. M.-H. Tsou; • 10♂♂, 4♀♀ (NMNS), Tengchih (藤枝), 7.IX.1989, leg. K. W. Huang; • 1♀ (NMNS), same locality, 21–24.XI.1995, leg. M. L. Chan; • 1♂ (TARI), same locality, 18.II.2007, leg. S.-F. Yu; • 1♂ (TARI), same locality, 2–5.VI.2008, leg. C.-F. Lee; • 4♀♀ (TARI), same locality, 9.XI.2013, leg W.-C. Liao; • 1♀ (KMNH), Tienchi (天池), 2.VI.1986, leg. K. Baba, identified as B. acutangula by Kimoto (1989); • 1♂, 5♀♀ (NMNS), Tona forest road (多納林道), 28.IV.1998, leg. M. L. Chan; • 1♀ (TARI), same locality (= Tonalintao), 16.II.2011, leg. J.-C. Chen; • 2♀♀ (KMNH), Yakou (啞口), 1.VIII.1986, leg. K. Baba, identified as B. acutangula by Kimoto (1989); • Nantou: 10♂♂, 15♀♀ (TARI), Hsitou (溪頭), 25.IV.2025, leg. C.-F. Lee; • 1♂ (TARI), Tatachia (塔塔加), 29.X.2009, leg. C.-F. Lee; • 1♂ (TARI), same but with “9.V.2011”; • 5♂♂, 8♀♀ (TARI), same but with “23.IV.2025”; • Pingtung: 2♂♂, 5♀♀ (TARI), Peitawushan (北大武山), 13.III.2025, leg. J.-C. Chen; • 2♂♂, 3♀♀ (TARI), same but with “20.III.2025”; • Taitung: 2♂♂, 3♀♀ (MHNUK), 14 km W of Chihshang (池上), 23°09'N, 121°04'E, 900 m, 16.XI.2008, leg. L. Dembický; • 1♂, 6♀♀ (TARI), Hsiangyang (向陽), 1.VII.2009, leg. M.-H. Tsou; • 3♂♂, 4♀♀ (TARI), Motien (摩天), 23.V.2011, leg. C.-F. Lee; • 1♂, 1♀ (TARI), Liyuan (栗園), 24.I.2014, leg. W.-C. Huang; • 2♂♂, 1♀ (TARI), same but with “14.III.2014”; • 1♀ (NHMUK), Yakou Country Inn (啞口山莊), 23°16.063'N, 120°58.419'E, 2582 m, 11.VIII.2008, leg. H. Mendel & M. V. L. Barclay; • Yunlin: 3♂♂, 1♀ (NMNS), Shihpi (石壁), 20.II.1991, leg. C. C. Chiang; • 1♂, 1♂ (NMNS), same but with “22. II.1991”; • 2♂♂, 1♀ (NMNS), same locality, 27.X.1992, leg. W. T. Yang. Diagnosis. Adults of B. tsoui sp. nov., B. chungi sp. nov., and B. choui sp. nov. are recognized by their strongly and apically narrowed elytra, and divergent 105 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan elytral apices, but B. tsoui sp. nov. and B. chungi sp. nov. differ in possessing flattened elytra in males (Fig. 21C) but convex elytra in females (Fig. 21F) [convex elytra and elytral apex not visible in dorsal views in both sexes of B. choui sp. nov. (Fig. 5C, F)], and widened apex of aedeagus (Fig. 22C) [parallel-sided aedeagus in B. choui sp. nov. (Fig. 6C)]. Adults of B. tsoui sp. nov. are not separable from those B. chungi sp. nov. by external morphology but the aedeagus of B. tsoui sp. nov. (Fig. 22C) is narrower than that of B. chungi sp. nov. (Fig. 8C). Figure 21. Habitus of Batophila tsoui sp. nov. A. Male, paratype, dorsal view; B. Ditto, ventral view; C. Ditto, lateral view; D. Female, paratype, dorsal view; E. Ditto, ventral view; F. Ditto, lateral view. 106 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Description. Male. Length 1.86–1.94 mm, width 0.77–0.80 mm. General color metallic dark bronze (Fig. 21A–C); legs yellowish but femora of hind legs darkened. Antenna (Fig. 22A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.7: 0.5: 0.6: 0.8: 0.7: 0.8: 0.7: 0.7: 0.7: 0.9; ratio of length to width of antennomeres I–XI 2.8: 2.5: 2.4: 3.0: 3.3: 2.6: 2.4: 2.3: 2.0: 2.1: 2.5. Pronotum 1.17–1.22× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles 1.14–1.22× wider than basal margin. Elytra 1.48–1.49× Figure 22. Batophila tsoui sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 107 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan longer than wide; lateral margins rounded, widest at basal 1/5, apically and strongly narrowed, apex truncate but divergent; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of extremely coarse punctures and with distinct longitudinal grooves along punctures, punctures and grooves apically abbreviated from apical 1/3. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 22C, D) elongate, 5.8× longer than wide; widest at apical 1/5, apically narrowed towards apex, apex widely rounded, basally widened near apical 2/5, then widened near base; dorsal opening starting from apical 1/9–1/3, tectum composed of three lobes, median lobe more ventral relative to lateral lobes, apical margin truncate, mostly membranous; slightly curved in lateral view, apex moderately curved; ventral surface with membranous area wider than dorsal opening, starting from apical 1/10–3/5. Female (Fig. 21D–F). Length 1.99–2.56 mm, width 0.88–1.05 mm. Antennae similar to males, ratio of length of antennomeres I–XI to length of antennomere I (Fig. 22B) 1.0: 0.6: 0.6: 0.6: 0.8: 0.7: 0.8: 0.7: 0.7: 0.6: 1.0; ratio of length to width of antennomeres I–XI 2.6: 2.3: 2.7: 3.0: 3.5: 2.6: 2.5: 2.2: 2.0: 1.9: 2.8. Elytra 1.46–1.67× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate but divergent; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of extremely coarse punctures and with distinct longitudinal grooves along punctures, punctures and grooves apically abbreviated from apical 1/3. Gonocoxae (Fig. 22F) slender, connected at basal 1/5; each gonocoxa with seven long setae and one tiny seta from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 22E) weakly sclerotized apically, with several short setae at apical area, and some tiny setae at apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 22G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Food plants. Melastomataceae: Otanthera scaberrima (Hayata) Ohwi (Fig. 9E, F); Rosaceae: Rubus formosensis Kuntze, R. morii Hayata, R. croceacanthus H. Lév., R. wallichianus Wight & Arn. (Fig. 9D). Etymology. This new species is named for Mei-Hua Tsou (曹美華), the first member of TCRT to collect specimens. Distribution. This species is widespread in mountainous areas in southern Taiwan (Fig. 7). Batophila wusheensis sp. nov. https://zoobank.org/D26AAC6F-F64D-4394-8C84-85585A9F2AC6 Fig. 23 Batophila yangweii: Chûjô 1937: 54 (part). Type specimens examined (n = 201). Holotype ♂ (TARI): Taiwan. Nantou: Nantou: Wushe (霧社), 30.VIII.–2.IX.1982, leg. L. Y. Chou & K. C. Chou. Paratypes. 88♂♂, 55♀♀ (TARI), same data as holotype; Nantou: 5♂♂, 5♀♀ (NHMUK), (Chingying, 精英), 24°02.530'N, 121°12.555'N, 1920 m, 6.VIII.2008, leg. M. V. L. Barclay, H. Mendel & R. Ewers; 3♀♀ (NMNS), Chunyang (春陽), 9.IV.–7.V.2002, leg. C. S. Lin & W. T. Yang, Malaise trap; 1♂, 1♀ (TARI), Hoshe (和社), 22.VII.1982, 108 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan leg. L. Y. Chou & T. Lin; 2♀♀ (TARI), Musha (= Wushe, 霧社), 18.V.–15.VI.1919, leg. T. Okuni, both identified as B. yangweii by Chûjô (1937); 1♂ (TARI), same locality, 23–28.VI.1981, leg. K. S. Lin & W. S. Tang; 1♂ (TARI), same locality, 26– 28.VIII.1981, leg. L. Y. Chou & S. C. Lin; 1♀ (TARI), same locality, 14.VII.1982, leg. S. C. Lin & C. N. Lin; 9♂♂, 7♀♀ (TARI), same locality, 7–8.X.1982, leg. K. C. Chou; 14♂♂, 13♀♀ (TARI), same locality, 19–22.IV.1983, leg. K. C. Chou & S. P. Huang; 2♀♀ (NMNS), same locality, 29–31.V.1996, leg. C. S. Lin; 1♂, 1♀ (TARI), Yu-shih (幼獅), 4.VIII.1981, leg. T. Lin & W. S. Tang. Diagnosis. Adults of B. wusheensis sp. nov. are not separable from those of B. houjayi sp. nov., B. yuae sp. nov., B. jungchani sp. nov., and B. huangi sp. nov. that are characterized by truncate elytral apices based on external morphology (Figs 10, 12) except for the aedeagus (see below). However, these species can be recognized by their allopatric distributions [B. wusheensis sp. nov. inhabits at lowlands in Nantou County, B. houjayi sp. nov. in high mountains in Chiayi, Ilan, Figure 23. Batophila wusheensis sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 109 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Hualien, and Nantou counties, B. yuae sp. nov. in lowlands in Taipei and New Taipei Cities, and Ilan County, B. jungchani sp. nov. in high mountains in Taichung and Miaoli counties, B. huangi sp. nov. in lowlands in Miaoli County and high mountains in Hsinchu and Taoyuan counties (Fig. 13)]. Aedeagal shapes are diagnostic [apically tapering aedeagus from apical 1/5 in B. wusheensis sp. nov. (Fig. 23), widely rounded apex of aedeagus in B. houjayi sp. nov. (Fig. 11C), rounded apex of aedeagus with truncate process at middle of apical margin in B. yuae sp. nov. (Fig. 26C), subapically tapering apex of aedeagus in B. jungchani sp. nov. (Fig. 15C), and rounded apex of aedeagus with small, rounded process at middle of apical margin in B. huangi sp. nov. (Fig. 14C)]. Description. Male. Length 1.57–1.74 mm, width 0.70–0.80 mm. General color metallic dark bronze; antennae yellowish brown but six apical antennomeres darker; legs yellowish but femora of hind legs darkened. Antenna (Fig. 23A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.6: 0.6: 0.8: 0.7: 0.8: 0.8: 0.8: 0.7: 1.0; ratio of length to width of antennomeres I–XI 2.6: 2.3: 3.1: 2.7: 3.5: 2.7: 2.5: 2.6: 2.1: 2.0: 2.7. Pronotum 1.22–1.24× wider than long; lateral margins slightly rounded, disc with lateral depressions at basal 1/3, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles 1.09–1.17× wider than basal margin. Elytra 1.40–1.46× longer than wide; lateral margins rounded, widest at basal 1/3, apex truncate; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of coarse punctures and with indistinct longitudinal grooves along lines, reduced in some individuals. Tarsomeres I of front and middle legs slightly swollen. Aedeagus (Fig. 23C, D) elongate, 5.8× longer than wide; parallel-sided, apically narrowed from apical 1/5, apex pointed; dorsal opening starting from apical 1/10 and basally membranous, tectum composed of three lobes, median lobe more ventral relative to lateral lobes and apical margin truncate, mostly membranous; moderately curved in lateral view; ventral surface with membranous area narrower than dorsal opening, starting from apical 1/20–1/2. Female. Length 1.96–2.30 mm, width 0.87–1.00 mm. Antennae similar to males, ratio of length of antennomeres I–XI to length of antennomere I (Fig. 23B) 1.0: 0.6: 0.6: 0.6: 0.7: 0.6: 0.7: 0.7: 0.7: 0.6: 0.9; ratio of length to width of antennomeres I–XI 2.9: 2.2: 2.7: 2.7: 3.5: 2.8: 2.9: 2.4: 2.2: 2.1: 2.8. Elytra 1.42–1.51× longer than wide; lateral margins rounded, widest at basal 1/3, apex truncate; dorsoventrally convex elytral apex not visible in dorsal view; disc with longitudinal lines of coarse punctures and with indistinct longitudinal grooves along lines, reduced in some individuals. Gonocoxae (Fig. 23F) slender, connected at basal 1/5; each gonocoxa with seven long setae and one tiny seta from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 23E) weakly sclerotized apically, with several short setae at apical area, and some tiny setae at sides of apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 23G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Food plants. Unknown. Etymology. This new species is named after its type locality, Wushe (霧社). Distribution. Only known from the abovementioned localities in central Taiwan (Fig. 13). 110 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Batophila yehi sp. nov. https://zoobank.org/690CABBE-A769-46DD-B9D5-D8F034D57B7B Figs 24, 25 Type specimens examined (n = 99). Holotype ♂ (TARI). Taiwan • Taichung: Hsuehshan (雪山), 18.VI.2010, leg. W.-B. Yeh. Paratypes • 18♂♂, 12♀♀ (TARI), same data as holotype; • 15♂♂, 6♀♀ (TARI), same but with “3.V.2007”; • 1♀ Figure 24. Habitus of Batophila yehi sp. nov. A. Male, paratype, from Hsuehshan (雪山), dorsal view; B. Ditto, ventral view; C. Ditto, lateral view; D. Female, paratype, from Hehuanshan (合歡山), dorsal view; E. Ditto, ventral view; F. Ditto, lateral view. 111 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan (TARI), same but with “14.VI.2008”; • 5♂♂, 1♀ (TARI), same but with “4.VIII.2010”; • 1♀ (TARI), same but with “8.IV.2011”; • 12♂♂, 8♀♀ (TARI), same but with “10.VI.2011”; • 1♂ (TARI), same but with “3.VIII.1911”; • 1♀ (TARI), same locality, 29.IV.-28.VI.2012, leg. L.-P. Hsu; • Miaoli: 1♀ (TARI), Hsuehchien (雪見), 23.III.2014, leg. W.-B. Yeh; • Nantou: 6♂♂, 10♀♀ (TARI), Hehuanshan (合歡山), 23.VI.2018, leg. H.-F. Lu. Diagnosis. Adults of B. yehi sp. nov. are similar to those of B. taiwanica Döberl and B. meihuai sp. nov. in possessing convergent elytral apices. However, adults of B. yehi sp. nov. are recognized by their stout antennae, length of antennomeres VI–X 0.5× length of antennomere I (Fig. 25A, B) [> 0.5× in B. taiwanica Figure 25. Batophila yehi sp. nov. A. Antenna, male; B. Antenna, female; C. Aedeagus, dorsal view; D. Aedeagus, lateral view; E. Abdominal ventrite VIII, female; F. Spermatheca; G. Gonocoxae. 112 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan (Fig. 20A, B) and B. meihuai sp. nov. (Fig. 18A, B)]. Adults of B. meihuai sp. nov. are characterized by their distinct and sexually dimorphic longitudinal ridges on the elytra (Fig. 17) [indistinct or reduced longitudinal ridges on the elytra in B. taiwanica (Fig. 19) and B. yehi sp. nov. (Fig. 24)]. The aedeagi of these species are diagnostic: truncate apex in B. meihuai sp. nov. (Fig. 18C), rounded apex with narrowly rounded process at middle of apical margin in B. taiwanica (Fig. 20C), and widely rounded apex in B. yehi sp. nov. (Fig. 25C). Description. Male. Length 1.39–1.57 mm, width 0.69–0.78 mm. General color metallic dark bronze (Fig. 24A–C); antennae yellowish brown but six apical antennomeres darker; legs yellowish but femora of hind legs darkened. Antenna (Fig. 25A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.5: 0.4: 0.5: 0.5: 0.5: 0.5: 0.5: 0.5: 0.5: 0.7; ratio of length to width of antennomeres I–XI 2.9: 2.0: 1.8: 2.0: 2.3: 2.2: 2.0: 1.9: 1.5: 1.6: 2.3. Pronotum 1.22–1.25× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, widest at middle, slightly narrowed basally, distance between anterolateral angles 0.99–1.01× wider than basal margin. Elytra 1.28–1.33× longer than wide; lateral margins rounded, widest at basal 1/3, apex widely rounded and converge; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of coarse punctures but lacking longitudinal grooves and ridges. Tarsomeres I of front and middle legs strongly swollen. Aedeagus (Fig. 25C, D) elongate, 5.3× longer than wide; lateral margins basally and slightly widened towards base, apex widely rounded; dorsal opening starting from apical 1/10 and basally membranous, tectum composed of three lobes, median lobe more ventral relative to lateral lobes and apical margin truncate, mostly membranous; moderately curved in lateral view; ventral surface with membranous area narrower than dorsal opening, starting from apical 1/20–2/5. Female. Length 1.63–1.73 mm, width 0.81–0.89 mm. Antennae similar to males, but antennomeres VIII–X wider than those of males, ratio of length of antennomeres I–XI to length of antennomere I (Fig. 25B) 1.0: 0.6: 0.4: 0.4: 0.5: 0.5: 0.5: 0.5: 0.5: 0.5: 0.8; ratio of length to width of antennomeres I–XI 2.4: 2.0: 1.9: 1.7: 2.0: 1.8: 1.5: 1.3: 1.4: 1.4: 2.1. Elytra 1.28–1.32× longer than wide; lateral margins rounded, widest at basal 1/3, apex convergent; dorsoventrally convex, apex not visible in dorsal view; disc with longitudinal lines of coarse punctures but lacking longitudinal grooves and ridges. Gonocoxae (Fig. 25F) slender, connected at basal 1/5; each gonocoxa with seven long setae and one tiny setae from apical 1/5 to apex, subapically slightly curved. Ventrite VIII (Fig. 25E) weakly sclerotized apically, with several short setae at sides of apex, and some tiny setae at sides of apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 25G) strongly swollen, with transverse wrinkles at basal 1/2; pump wide and curved, with transverse wrinkles at apical 2/3; sclerotized spermathecal canal moderately long before base of spermathecal gland. Variation. Individuals collected from Hehuanshan (合歡山) (Fig. 24D–F) have longitudinal grooves connected with lines of coarse punctures on the elytra. Food plants. Rosaceae: Fragaria hayatai Makino. Etymology. This new species is named for Dr. Wen-Bin Yeh (葉文斌), who worked as professor at the National Chung Hsing University and collected most of the type series. Distribution. This species is found in alpine areas of central Taiwan (Fig. 13). 113 ZooKeys 1258: 73–118 (2025), DOI: 10.3897/zookeys.1258.163900 Chi-Feng Lee: Batophila in Taiwan Batophila yuae sp. nov. https://zoobank.org/F0E8D7D7-5893-4A66-B1C8-7CDA46803066 Fig. 26 Batophila yangweii: Chûjô 1937: 54 (part). Type specimens examined (n = 20). Holotype ♂ (TARI). Taiwan • Taipei: Lengshuikeng (冷水坑), 29.VI.2008, leg. M.-H. Tsao (sic!). Paratypes • 2♀ (TARI), same data as holotype; • 1♀ (TARI), same locality, 22.II.2015, leg. M.-H. Tsou; • Ilan: 1♀ (NMNS), Chilan (棲蘭), 15.V.1999, leg. S. Halbert, C. W. & L. B. O’Brien; • 1♂ (TARI), Fushan Botanical Park (福山植物園), 19–26.VI.2006, leg. C.-S. Tung; • 1♀ (TARI), same but with “14–21.VII.2007”; • 2♂♂, 2♀♀ (TARI), Mingchi (明池), 5.IV.2009, leg. M.-H. Tsou; • 1♀ (TARI), Nishimura (= Hsitsun, 西村), 24.VII.1919, leg. Y. Miwa, identified as B. yangweii by Chûjô (1937); • 2♂ (NMNS), Wufangchi (sic!) (五峰旗), 16.X.1990, leg. C. C. Chiang; • New Taipei City: 1♂, 1♀ (TARI), Hinokiyama (= Kueishan, 檜山), 22.VII.1929, leg. Y. Miwa, both identified as B. yangweii by Chûjô (1937); • 1♀ (TARI), Wulai (烏來), 26.X.2006, leg. S.-F. Yu; • 1♀ (TARI), Yingtzuling (鶯子嶺), 9.V.2010, leg. M.-H. Tsou; • Taipei City: 1♀ (TARI), Sôzan (= Yangmingshan, 陽明山), 28.IV.1940, leg. S. Miyamoto; • 1♀ (TARI), Tatunshan (大屯山), 26.V.2010, leg. S.-F. Yu. Diagnosis. Adults of B. yuae sp. nov. are not separable from those of B. houjayi sp. nov., B. wusheensis sp. nov., B. jungchani sp. nov., and B. huangi sp. nov. that are characterized by truncate elytral apices based on external morphology (Figs 10, 12) except for the aedeagus (see below). However, these species can be recognized by their allopatric distributions [B. yuae sp. nov. inhabits lowlands in Taipei and New Taipei Cities, and Ilan County, B. wusheensis sp. nov. in lowlands of Nantou County, B. houjayi sp. nov. in high mountains of Chiayi, Ilan, Hualien, and Nantou counties, B. jungchani sp. nov. in high mountains of Taichung and Miaoli counties, B. huangi sp. nov. in lowlands of Miaoli County and high mountains of Hsinchu and Taoyuan counties (Fig. 13)]. Aedeagal shapes are diagnostic [rounded apex of aedeagus with truncate process at middle of apical margin in B. yuae sp. nov. (Fig. 26C), apically tapering aedeagus from apical 1/5 in B. wusheensis sp. nov. (Fig. 23C), widely rounded apex of aedeagus in B. houjayi sp. nov. (Fig. 11C), subapically tapering apex of aedeagus in B. jungchani sp. nov. (Fig. 15C), and rounded apex of aedeagus with a small, rounded process at middle of apical margin in B. huangi sp. nov. (Fig. 14C)]. Description. Male. Length 1.53–1.67 mm, width 0.76–0.80 mm. General color metallic dark bronze; antennae yellowish brown but six apical antennomeres darker; legs yellowish but femora of hind legs darkened. Antenna (Fig. 26A) filiform and antennomeres VIII–X wide, ratio of length of antennomeres I–XI to length of antennomere I 1.0: 0.6: 0.5: 0.5: 0.6: 0.6: 0.7: 0.7: 0.7: 0.6: 0.8; ratio of length to width of antennomeres I–XI 2.6: 2.1: 2.2: 2.4: 2.6: 2.5: 2.3: 2.0: 2.1: 1.8: 2.4. Pronotum 1.24–1.25× wider than long; lateral margins slightly rounded, anterolateral angles separated from lateral margins by weak emarginations, slightly narrowed basally, distance between anterolateral angles widest, 1.10–1.15× wider than basal margin. Elytra 1.31–1.34× longer than wide; lateral margins rounded, widest at basal 1/5, apex truncate; dorsoventrally flattened, apex visible in dorsal view; disc with longitudinal lines of coarse punctures, and indistinct longitudinal grooves along punctures present only near base, no ridges present between longi-