Hesperopenna medvedevi Bezděk, 2013, nom. nov.
Creators: name: Bezděk, Jan
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Hesperopenna
Hesperopenna medvedevi

description: Hesperopenna medvedevi nom. nov.
(Figs 11, 19, 27, 34, 41, 48, 56–57)
Hesperopenna flava Medvedev & Dang, 1981: 634 (original description); KIMOTO (1989): 99.
Type locality. Vietnam, Baktkhay, 50 km N of Thai Nguyen.
Type material. HOLOTYPE: ♂, ‘ Вьетнам горы / Тхaй- Нгуен 50км [p] / 21. [h] y [p] I. [h] 196 [p] 3 [h] Кабаков [w, p] // Holotypus [p] / Hesperopenna flava / L. Medv. et D-Dap [red label, h]’ (LMCM).
Additional material examined (8 spec.). VIETNAM: NINH BINH PROV.: Cuc Phong N. P., 20°21′10″N 105°35′00″E, 440 m, 24.-28.iv.2012, 4 ♂♂ 3 ♀♀, E. Jendek leg. (JBCB); Cuc Phuong, 3.–10.v.1966, 1 ♀, G. Topál leg. (ZMHB).
Description. Body length: ♂♂ 7.6–8.5 mm (holotype 7.6 mm), ♀♀ 8.0–9.0 mm.
Male (Fig. 48, holotype Fig. 56). Body completely pale brown, antennae pale brown or darkened from antennomere IV, apical half of elytra slightly paler than rest of body.
Interocular space 1.5 times as wide as transverse diameter of eye. Antennae 0.85 times as long as body, length ratio of antennomeres I to XI equals 15-4-7-13-14-14-16-15-15-14-15. Pronotum 1.50 – 1.55 times as broad as long. Elytra 1.7 times as long as wide (measured at humeral calli), 0.70 times as long as body. Apical half of elytra densely covered with short pale setae. Length ratio of metatarsomeres I–IV equals 12-6-6-9. Last ventrite posteriorly without two incisions (Fig. 19).
Aedeagus: dorsal side with long thin incision separating slightly wider and longer left part from narrower right part; ventral side apically with wide subtriangular process, in middle with distinct sharp keel (Fig. 11).
Female. Pronotum 1.48–1.58 times as broad as long. Apex of last ventrite with wide triangular incision (Fig. 27), pygidium with U-shaped incision and slightly concave posterior margins near incision (Fig. 34). Spermatheca: nodulus globular, cornu regularly rounded, apical appendage bent up (Fig. 41).
Differential diagnosis. Due to the apical half of elytra covered with short pale setae and completely brown legs, H. medvedevi nom. nov. is similar to H. sipekorum sp. nov. and H. arnoldi sp. nov. In H. arnoldi sp. nov. at least the apical 2/3 of elytra are covered with short pale setae, while only the apical half is covered with setae in H. sipekorum sp. nov. and H. medvedevi. Aedeagi of all three species share a thin long incision in the middle of dorsal side. Ventral side of aedeagus in H. medvedevi is more or less symmetrical, apex formed by subtriangular process with a rounded tip, lateral incisions short and of the same depth (Fig. 11). On the other hand, ventral sides of aedeagus in H. sipekorum sp. nov. and H. arnoldi sp. nov. have assymetrical apex with a deep U-shaped (H. arnoldi sp. nov.) or V-shaped (H. sipekorum sp. nov.) incision on the right and very short incision on the left (Figs 14, 17). Females of these three species can be distinguished by apex of pygidium with an U-shaped incision which is large and deep in H. sipekorum sp. nov., very small in H. arnoldi sp. nov., and of medium size in H. medvedevi (Figs 34, 37, 39).
Distribution. North Vietnam (MEDVEDEV & DANG 1981, present paper).
Comments. Hesperopenna flava Medvedev & Dang, 1981 is a junior secondary homonym of H. flava (Jacoby, 1892) (comb. nov.), thus a replacement name H. medvedevi nom. nov. is proposed.
description: Published as part of Bezděk, Jan, 2013, Revision of the genus Hesperopenna (Coleoptera: Chrysomelidae: Galerucinae). I. Generic redescription, definition of species groups and taxonomy of H. medvedevi species group, pp. 715-746 in Acta Entomologica Musei Nationalis Pragae 53 (2) on pages 724-725, DOI: 10.5281/zenodo.5740035