Revision of the genus Doryscus Jacoby (Coleoptera: Chrysomelidae: Galerucinae) Author Lee, Chi-Feng text Zootaxa 2017 4269 1 1 43 journal article 33014 10.11646/zootaxa.4269.1.1 0b7fd4db-9f34-47ef-b7e8-33363155d866 1175-5326 581259 2AFC0D53-B439-4BBB-BC22-A0C90C08D65D Doryscus niger Medvedev & Sprecher-Uebersax, 1998 ( Figs 9 F, 12) Doryscus niger Medvedev & Sprecher-Uebersax, 1998 : 34 . Types (n= 3). Holotype ♂ ( NMHB ), labeled: “ Pothana 1900- / Landrung 1600m / 7.V.1984 [p, w] // W-Nepal / C. Holzschuh [p, w] // HOLOTYPUS [p] / Doryscus / niger m. [h] / L.N.Medvedev det.95 [p, r] . Paratypes : 1♂ ( NHMB ), labeled: “Landrung- 1600- / Pothana 1900m / 6.VI.1984 [p, w] // W-Nepal / Modi Khola / C. Holzschuh [p, w] // PARATYPUS / L.N.Medvedev det.95 [p, r]” ; 1♀ ( NMHB ), labeled: “ Gangjwal / 2500m 6–7.V.89 / M. Brancucci [p, w] // Nepal Bagmati / Sindhupalchok [p, w] // Doryscus / niger / Medvedev [h, w] // PARATYPUS / L.N.Medvedev det.95 [p, r]”. Redescription. Length 3.7–4.3 mm , width 1.4–1.8 mm . General color black, but mouth parts, antennae, apices of femora, bases of tibiae, and tarsi paler ( Fig. 9 F). Antennomere I slightly swollen in males ( Fig. 12 A), length ratios of antennomeres I–XI 1.0: 0.4: 0.6: 0.6: 0.6: 0.6: 0.7: 0.7: 0.6: 0.6: 0.7, length to width ratios of antennomeres I–XI 3.0: 1.5: 2.5: 2.5: 2.6: 2.6: 2.9: 2.9: 3.0: 2.7: 3.8; antennomere I more slender in females ( Fig. 12 B), length ratios of antennomeres I–XI 1.0: 0.4: 0.6: 0.6: 0.7: 0.7: 0.7: 0.7: 0.6: 0.6: 0.8, length to width ratios of antennomeres I–XI 3.7: 1.8: 2.7: 2.8: 2.9: 2.7: 2.7: 2.8: 2.9: 2.7: 3.6. Elytra 1.8x longer than wide, surface with erect, pale, dense, and elongate setae; and fine punctures. Apical margin of last abdominal ventrites with two shallow incisions in males ( Fig. 12 G); but widely rounded in females ( Fig. 12 H). Penis ( Figs 12 C–12D) slender, 6.1 x longer than wide, gradually narrowed towards apex; apex of dorsal surface with deep notch; apex of ventral surface with shallow notch; almost straight in lateral view, apex with deep notch between dorsal and ventral surface; ventral surface smooth. Endophallic spiculae long, about 0.6 x as long as penis, apex trilobed, median lobe medially swollen, with dense lateral setae subapically, lateral lobes slender; eight pairs basal horn-like spiculae, basal pair longest, apically shortened. Gonocoxae ( Fig. 12 E) extremely slender, 6.2 x longer than wide, sides narrowed at apical 1/10 and 3/10 ; apices narrowly rounded; inner margins approximate from apex to midpoint, apex with nine setae; extremely slender from half to midpoint but abruptly widened at base. Ventrite VIII ( Fig. 12 F) well sclerotized; spiculum elongate; apex square, apical margin truncate, with dense short setae; disc with several long setae at sides. Receptacle of spermatheca ( Fig. 12 I) moderately swollen, narrowly separated from pump; pump strongly curved but not apically narrowed; proximal spermathecal duct slender, shallowly projecting into receptaculum. FIGURE 12. Diagnostic characters of niger Medvedev & Sprecher-Uebersax. 12A. Antenna, male; 12B. Antenna, female; 12C. Penis, dorsal view; 12D. Penis, lateral view; 12E. Gonocoxae; 12F. Abdominal ventrite VIII. 12G. Apical margin of abdominal ventrite V, male; 12H. Apical margin of abdominal ventrite V, female; 12I. Spermatheca. Differential diagnosis. See diagnosis of Doryscus nepalensis sp. nov. Distribution. Only known from type specimens from Nepal .