Batophila alishanensis sp. nov.

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. 3 C) [apically narrow aedeagus in B. houjayi sp. nov. (Fig. 11 C)].

Description.

Male. Length 1.44–1.61 mm, width 0.74–0.80 mm. General color metallic dark bronze (Fig. 2 A – C); legs yellowish but hind femora darkened. Antenna (Fig. 3 A) 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. 3 C, 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 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. 2 D – 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 I (Fig. 3 B) 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. 3 F) 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. 3 E) weakly sclerotized apically, with several short setae at apical area, and some tiny setae at apical margin, spiculum extremely elongate. Spermathecal receptaculum (Fig. 3 G) 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).