Hesperopenna medvedevi, Bezděk, 2013

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, Acta Entomologica Musei Nationalis Pragae 53 (2), pp. 715-746 : 724-725

publication ID	https://doi.org/ 10.5281/zenodo.5740035
publication LSID	lsid:zoobank.org:pub:9A396426-08FE-4E2A-A4EF-CD0DA819D8AF
DOI	https://doi.org/10.5281/zenodo.5740310
persistent identifier	https://treatment.plazi.org/id/166387BC-FFFF-FFD2-9AC4-FE17FE966BC6
treatment provided by	Marcus
scientific name	Hesperopenna medvedevi
status	nom. nov.

Treatment

Hesperopenna medvedevi nom. nov.

( Figs 11 View Figs 11–14 , 19 View Figs 19–26 , 27 View Figs 27–33 , 34 View Figs 34–40 , 41 View Figs 41–47 , 48 View Figs 48–51 , 56–57 View Figs 56–65 )

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) GoogleMaps ; 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 View Figs 48–51 , holotype Fig. 56 View Figs 56–65 ). 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 View Figs 19–26 ).

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 View Figs 11–14 ).

Female. Pronotum 1.48–1.58 times as broad as long. Apex of last ventrite with wide triangular incision ( Fig. 27 View Figs 27–33 ), pygidium with U-shaped incision and slightly concave posterior margins near incision ( Fig. 34 View Figs 34–40 ). Spermatheca: nodulus globular, cornu regularly rounded, apical appendage bent up ( Fig. 41 View Figs 41–47 ).

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 View Figs 11–14 ). 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 View Figs 11–14 , 17 View Figs 15–18 ). 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 View Figs 34–40 ).