Rubiparvus bistigma Xu, Dietrich & Qin

Xu, Ye, Wang, Yu-Ru, Lu, Si-Han, Dietrich, Christopher H. & Qin, Dao-Zheng, 2016, Rubiparvus bistigma, a new genus and species of Empoascini (Hemiptera, Cicadellidae, Typhlocybinae), with a checklist of the Alebroides group in Chinese fauna, Zootaxa 4109 (5), pp. 583-589 : 585-587

Rubiparvus bistigma Xu, Dietrich & Qin , sp. nov.

( Figs 1–19 )

Type materials. Holotype. ♂ ( NWAFU), China, Yunnan Province, Mengla, Nanping, 27 July, 2014, coll. Huifeng Suo, by light trap. Paratypes. 5♂♂, same data as holotype ( NWAFU).

Description. Body length: male 2.6-2.8 mm.

Ground color orange red. Head with median black spot at apical transition from crown to face and symmetrical pale submedial spots on crown and face, frontoclypeus with diffuse brown medial spot just dorsad of anteclypeus ( Figs 1–4 ). Eyes black ( Figs 1–4 ). Antennae with scape white, pedicel red ( Fig. 4 ). Pronotum mostly orange red, anterior margin and arcuate area behind eyes with irregular yellow patches ( Fig. 3 ). Mesonotum with basolateral triangles black, otherwise orange-yellow ( Fig. 3 ). Forewing and hind wing smily subhyaline, brochosome field tan ( Figs 9, 10 ). Abdomen black. Legs tan except 1st, 2nd tibia and hind tarsus sordid white.

Basal sternal abdominal apodemes reaching anterior margin of segment 5 to 6 ( Figs 7, 8 ). Male pygofer in lateral view with 5-10 rigid microsetae along posterior margin, dorsal bridge occupying nearly half total length of pygofer ( Figs 5, 6 , 11–13 ). Subgenital plate strongly narrowed in apical 1/3, apically curved dorsad and acutely angulate in lateral view, A and D-group setae absent, B-group setae (22–25) arranged in two or three rows occupying almost apical half of dorsolateral margin, C-group seta (1) preapical on ventral side, additional tiny setae arranged in four to six rows occupying in the lower margin of subgenital plate ( Figs 5, 6 , 11, 17, 19 ). Paramere apex curved laterad and terminating in sharp point, bearing 4 fine setae and few sensory pits ( Figs 5 , 11, 17, 18 ). Aedeagus shaft tubular, dorsal apodeme expanded and strongly compressed, mostly membranous; preatrium well developed, bent at acute angle in lateral view, fused with connective; shaft in dorsal view slightly broadened medially, apical processes curved posterolaterad, each with lateral membranous lobe at base, gonopore apical between bases of processes ( Figs 15, 16 ). Anal tube appendage attenuate, extended ventrad into genital capsule and curved posterad, apex extended beyond posteroventral margin of pygofer, anal tube small ( Figs 5 , 11, 14 ).

Etymology. The name, a noun in apposition, is derived from the Latin words “ bi- ” and “ -stigma ”, referring to the two black spots on the thorax.

Distribution. China (Yunnan).

Figures

FIGURES 1 – 10. Rubiparvus bistigma Xu, Dietrich & Qin, sp. nov. 1. male adult, dorsal view; 2. same, left lateral view; 3. head and thorax, dorsal view; 4. face; 5. male genitalia, left lateral view; 6. same, dorsal view; 7. abdominal apodemes; 8. same, variant; 9. forewing; 10. hind wing. Scale bars = 0.2 mm (Figs 1 – 8); 1 mm (Figs 9, 10).

FIGURES 11 – 19. Rubiparvus bistigma Xu, Dietrich & Qin, sp. nov. 11. male genitalia, left lateral view; 12. pygofer side, left lateral view; 13. pygofer side, dorsal view; 14. anal tube appendage, left lateral view; 15. aedeagus, left lateral view; 16. same, dorsal view; 17. valve, subgenital plate, and paramere, ventral view; 18. paramere; 19. valve and subgenital plate, left lateral view. Scale bars = 0.1 mm (Figs 11 – 14, 17, 19); 0.05 mm (Figs 15, 16, 18).