Doryscus niger Medvedev & Sprecher-Uebersax, 1998

Lee, Chi-Feng, 2017, Revision of the genus Doryscus Jacoby (Coleoptera: Chrysomelidae: Galerucinae), Zootaxa 4269 (1), pp. 1-43: 23-25

publication ID

https://doi.org/10.11646/zootaxa.4269.1.1

publication LSID

lsid:zoobank.org:pub:2AFC0D53-B439-4BBB-BC22-A0C90C08D65D

persistent identifier

http://treatment.plazi.org/id/0A03A20C-FF85-FFAF-FF24-FA735261E9E9

treatment provided by

Plazi

scientific name

Doryscus niger Medvedev & Sprecher-Uebersax, 1998
status

 

Doryscus niger Medvedev & Sprecher-Uebersax, 1998 

( Figs 9View FIGURE 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. 9View FIGURE 9 F). Antennomere I slightly swollen in males ( Fig. 12View FIGURE 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. 12View FIGURE 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. 12View FIGURE 12 G); but widely rounded in females ( Fig. 12View FIGURE 12 H). Penis ( Figs 12View FIGURE 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. 12View FIGURE 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. 12View FIGURE 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. 12View FIGURE 12 I) moderately swollen, narrowly separated from pump; pump strongly curved but not apically narrowed; proximal spermathecal duct slender, shallowly projecting into receptaculum.

Differential diagnosis. See diagnosis of Doryscus nepalensis  sp. nov.

Distribution. Only known from type specimens from Nepal.

NHMB

Naturhistorisches Museum, Basel

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Chrysomelidae

Genus

Doryscus

Loc

Doryscus niger Medvedev & Sprecher-Uebersax, 1998

Lee, Chi-Feng 2017
2017
Loc

Doryscus niger

Medvedev 1998: 34