Hesperopenna sipekorum, 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 : 738-739

Hesperopenna sipekorum sp. nov.

( Figs 1–10 , 17 , 25 , 32 , 39 , 46 , 54 )

Type locality. India, Meghalaya, SW of Sohra, 29°14´N 91°40´E.

Type material examined. HOLOTYPE: ♂, ‘NE INDIA, Meghalaya, / SW of Sohra , 800-1000 m, / 29°14´N 91°40´E, / v.2005, C. L. Peša leg. [w, p]’ ( NMPC) . PARATYPES: 4 ♂♂ 8 ♀♀, same data as holotype (2 ♂♂ 2 ♀♀ in NMPC, 2 ♂♂ 6 ♀♀ in JBCB) ; 1 ♂ 1 ♀, ‘NE INDIA, MEGHALAYA; / SW of CHERRAPUNJEE; / 25°13´-15´N; 91°40´E; / 500-900m; 11.-12.v.2004; / R. Businský leg. [w, p]’ ( JBCB); 2♂♂,‘ INDIA, Meghalaya State, / E Khasi Hills, 11 km SW / Cherrapunjee, Laitkynsew , [w, p] // 810 m, 21-24.iv.2008 / 25°13´N, 91°39´E, Fikáček / Podskalská & Šípek leg. [w, p]’ ( JBCB) ; 7♂♂ 10♀♀,‘NE INDIA, MEGHALAYA / SW of CHERRAPUNJEE / 25°13´-14´N 91°40´E, 900m / L. Dembický leg., 1.-24.v.2005 [w, p] // BMNH {E} / 2006-48 / L. Dembicky [w, p]’ ( BMNH) ; 2 ♂♂ 3 ♀♀,‘NE INDIA, MEGHALAYA, / SW of CHERRAPUNJEE / 25°13´-14´N 91°40´E, / 5.-24.v. 2005, 900m / P. Pacholátko leg. [w, p] // BMNH {E} / 2006-48 / L. Dembicky [w, p]’ ( BMNH) ; 1 ♂ 1 ♀,‘NE INDIA, MEGHALAYA, / 8 km N of SHILLONG; / 25°38´N 91°54;~ 1200m / L. Dembický leg.; 7.-9.v.2004 [w, p]’ ( NHMB).

Description. Body length: ♂♂ 7.1–8.9 mm (holotype 8.3 mm), ♀♀ 6.6–9.4 mm.

Male (holotype, Fig. 54 ). Body orange brown, apices of mandibles black, antennae gradually darkened from antennomere III, apical half of elytra slightly paler than rest of elytra.

Interocular space 1.75 times as wide as transverse diameter of eye. Antennae 0.85 times as long as body, length ratio of antennomeres I to XI equals 14-5-7-15-15-14-16-15-15-14- 17. Pronotum 1.55 times as broad as long. Elytra 1.78 times as long as wide (measured at humeral calli), 0.70 times as long as body. Apical third of elytra densely covered with short pale setae. Length ratio of metatarsomeres I–IV equals 13-6-7-10. Last ventrite posteriorly without two small incisions ( Fig. 25 ).

Aedeagus: dorsal side with long thin incision; apex ventrally in the middle with high thin keel bent down and wide subtriangular incision on right side ( Fig. 17 ).

Female. Apex of last ventrite almost straight ( Fig. 32 ), apex of pygidium with large Ushaped incision ( Fig. 39 ). Spermatheca: nodulus subtubular, slightly wider apically, cornu regularly rounded, as wide as nodulus, apical appendage large, bent up ( Fig. 46 ).

Variability. Ratio width/length of pronotum in males varies between 1.44 – 1.56, in females 1.50 – 1.54.

Differential diagnosis. Having dense elytral setation and completely brown legs H. sipekorum sp. nov. is similar to H. arnoldi sp. nov. and H. medvedevi nom. nov. While the setation covers at least the apical 2/3 of elytra in H. arnoldi sp. nov. it covers about the apical third to half in H. sipekorum sp. nov. and H. medvedevi . All these species can be also separated by the structure of the ventral side of aedeagus. Hesperopenna medvedevi has aedeagus more or less symmetrical ventrally, apex formed by a subtriangular process with a rounded tip, lateral incisions short and of the same depth, while H. arnoldi sp. nov. and H. sipekorum sp. nov. have aedeagus asymmetrical ventrally with a deep incision on the right and a shallow incision on the left. Proximal part of aedeagus of H. sipekorum sp. nov. is comparatively shorter and more robust than in H. arnoldi sp. nov. Moreover, ventral side of aedeagus of H. sipekorum sp. nov. forms a thin keel bent downwards ( Figs 11, 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 ).

Etymology. Dedicated to Hanka Podskalská and Petr Šípek (now married couple the Šípeks) who collected two paratypes.

Distribution. India (Meghalaya).

Figures

Figs 1–10. Morphological details of Hesperopenna sipekorum sp. nov. 1 – head; 2 – pronotum in lateral view; 3 – prothorax; 4 – meso- and metathorax; 5 – left elytron in lateral view; 6 – right antenna; 7 – left hind leg; 8 – claw; 9 – vaginal palpi; 10 – tignum and sternite VIII. Scale bars: 1 mm for Figs 1–5 and 9–10, 2 mm for Figs 6–7, 0.25 mm for Fig. 8.

Figs 15–18. Aedeagus (a – dorsal view; b – lateral view; c – ventral view). 15 – H. bonifaci sp. nov.; 16 – H. helferi sp. nov.; 17 – H. sipekorum sp. nov.; 18 – H. zofka sp. nov. Scale bar 1 mm.

Figs 19–26. Last abdominal ventrite of males.19 – Hesperopenna medvedevi nom. nov.; 20 – H. persimilis (Kimoto, 1989); 21 – H. tibialis (Kimoto, 1989); 22 – H. arnoldi sp. nov.; 23 – H. bonifaci sp. nov.; 24 – H. helferi sp. nov.; 25 – H. sipekorum sp. nov.; 26 – H. zofka sp. nov. Scale bar 1 mm.

Figs 27–33.Last abdominal ventrite of females. 27 – Hesperopenna medvedevi nom.nov.; 28 – H.persimilis (Kimoto, 1989); 29 – H. tibialis (Kimoto, 1989); 30 – H. arnoldi sp. nov.; 31 – H. helferi sp. nov.; 32 – H. sipekorum sp. nov.; 33 – H. zofka sp. nov. Scale bar 1 mm.

Figs 34–40. Female pygidium. 34 – Hesperopenna medvedevi nom. nov.; 35 – H. persimilis (Kimoto, 1989); 36 – H. tibialis (Kimoto, 1989); 37 – H. arnoldi sp. nov.; 38 – H. helferi sp. nov.; 39 – H. sipekorum sp. nov.; 40 – H. zofka sp. nov. Scale bar 1 mm.

Figs 41–47. Spermatheca. 41 – Hesperopenna medvedevi nom. nov.; 42 – H. persimilis (Kimoto, 1989); 43 – H. tibialis (Kimoto, 1989); 44 – H. arnoldi sp. nov.; 45 – H. helferi sp. nov.; 46 – H. sipekorum sp. nov.; 47 – H. zofka sp. nov. Scale bar 0.25 mm.

Figs 52–55. Habitus. 52 – Hesperopenna bonifaci sp. nov. (male, holotype, 9.5 mm); 53 – H. helferi sp. nov. (male, paratype, 8.5 mm); 54 – H. sipekorum sp. nov. (male, holotype, 8.6 mm); 55 – H. zofka sp. nov. (male, holotype, 6.9 mm).

Figs 11–14.Aedeagus (a – dorsal view; b – lateral view; c – ventral view). 11 – Hesperopenna medvedevi nom.nov.; 12 – H. persimilis (Kimoto, 1989); 13 – H. tibialis (Kimoto, 1989); 14 – H. arnoldi sp. nov. Scale bar 1 mm.