Striatanus Li & Wang

Viraktamath, C. A. & Webb, M. D., 2018, Revision of the evacanthine leafhoppers (Hemiptera: Cicadellidae: Evacanthinae) of the Indian subcontinent, Zootaxa 4386 (1), pp. 1-78 : 29-30

Striatanus Li & Wang

Striatanus Li & Wang 1995: 189 . Type species: Striatanus curvatanus Li & Wang , by original designation.

Black with yellow markings, labium and legs yellow.

Macropterous. Head, pronotum and scutellum sparsely pubescent. Head conically produced in front of eyes, about as long as combined length of pronotum and mesonotum. Crown with median longitudinal and lateral marginal prominent carinae converging at apex with median carina on frontoclypeus. Ocelli placed in front of eyes ventral to lateral carina and carina that arises in front of eye traverses below ocellus and joins lateral carina thus enclosing the ocellus in a triangular space; surface of crown in apical 0.75 transversely rugose, basal 0.25 longitudinally rugose punctate. Frontoclypeus with lateral arched carina; clypellus broad basally tapered apically, coarsely granulate. Both gena and narrow elongate lorum rugose punctate. Pronotum gradually posteriorly widened, broader than head, transversely rugose punctate, lateral margin carinate. Mesonotum with basal triangles shagreen, rest unevenly rugose punctate, scutellum transversely rugose. Forewing with claval veins fused near middle to almost 0.33 length of outer claval vein, venation prominent, raised. Forefemur with three enlarged macrosetae on row AV followed by finer hair-like setae; intercalary row setae slightly stouter, row AM with scattered microsetae, AM1 well developed. Hind femur distal macrosetae 2+2+1. Hind tibial macrosetae AD 12, AV 18, PD 24; setae on row AD with 3–5 short setae interspersed between two large ones. Hind basitarsus apical transverse row with three spine-like platellae.

Male pygofer with dorsal basal fracture, devoid of macrosetae, with ventral process slightly exceeding height of posterodorsal margin, valve extended obliquely dorsally. Subgenital plate with basal segment, with multiserial macrosetae along median region and with lateral row of slender marginal setae. Style short, apophysis foot-shaped. Connective Y-shaped with stem about 1.5 times as long as arms. Aedeagus with plate-like apodemes with median ridge; shaft with complex dorsolateral lobes and often with ventral angular projection.

Female with ovipositor projecting well beyond pygofer but not beyond folded forewings.

Remarks. Striatanus Li & Wang can readily be recognised by the fused claval veins. It closely resembles Riseveinus Li but the latter differs in not having a ventral pygofer process in the male. Some undescribed species of Vangama also have medially fused claval veins but can be differentiated by the greatly elongated head with both dorsal and ventral laminate keels which are lacking in Striatanus .