Radhades crassus Distant, 1912

Viraktamath, C. A. & Webb, M. D., 2019, Revision of the Ulopinae leafhoppers (Hemiptera: Cicadellidae) of the Indian subcontinent, I. Ulopini genera: Daimachus, Radhades and Ulopsina, Zootaxa 4613 (3), pp. 557-577 : 563-564

Radhades crassus Distant

Figs 3 A–C, 10A–F.

Radhades crassus Distant 1912: 606 ; 1916: 228, fig. 166; Hamilton 1999, fig. 21.

“Head, pronotum and scutellum pale fuscous brown; scutellum with a black spot at each basal angle, the lateral margins ochraceous, widened before apex; abdomen above pale fuscous brown, posterior segmental margins ochraceous, the apical segment nearly wholly ochraceous; body beneath and legs pale ochraceous, tibiae black; head, face and pronotum thickly coarsely punctate, scutellum more finely punctate; tegmina with the basal and claval areas semiopaque, ochraceous, and obscurely finely granulate” ( Distant 1916).

Male genitalia. Pygofer with dorsoposterior angle more angularly produced than more rounded and shorter posteroventral angle. Aedeagus with one pair of symmetrical subapical lateral processes, each process distally slightly widened and spiculate, process of dorsal apodeme as long as dorsal apodeme and stouter than shaft. Other characters as in generic description.

Measurements. Male 4.8 mm long, 2.0 mm wide across eyes and 1.9 mm wide across posterolateral angles of pronotum.

Material examined: MYANMAR: Lectotype ♂ Radhades crassus , here designated “ Tenasserim Valley , Doherty ” ( BMNH).

Remarks. Distant (1912) described this species based on unknown number of speciemens (syntypic) collected from “Tenasserim Valley; Myitta (Doherty, Brit. Mus.)”; there is one syntype in the BMNH which is designated as lectotype. Radhades crassus can be distinguished from all other species of Ulopinae by the cylindrical body, the short and anteriorly rounded crown and the foretibiae dorsally scored.

Figures

FIGURES 3A–M. Species of Ulopini: A–C, Radhades crassus Distant, holotype male, dorsal and lateral views and label data; D–H, Ulopsina (Indoulopa) himalayana sp. nov.: D–E, holotype male dorsal, lateral and ventral view; GH, forewing and hind wing of paratype male; I–M, species of Daimachus, faces: I. D. exemplificatus Distant; J. D. matheranensis sp. nov.; K. D. robustus sp. nov.; L. D. sirsiensis sp. nov.; M. D. sudindicus sp. nov.