Idioscopus bimaculatus (Pruthi)

VIRAKTAMATH, C. A. & YESHWANTH, H. M., 2024, Arboreal eurymeline leafhoppers (Hemiptera: Cicadellidae: Eurymelinae) of the Indian subcontinent with description of new genera and eight new species, Zootaxa 5462 (1), pp. 1-125 : 41

Idioscopus bimaculatus (Pruthi)

Figs 19A–F , 59G , 61E , 65M–P .

Idiocerus bimaculatus Pruthi 1936: 102 , figs 117, pl. VIII figs 2, 2a. Maldonado-Capriles 1965: 244. Viraktamath 1980: 227, figs. 1–6.

Diagnosis. Uniformly bright greenish yellow, basal triagles of mesonotum with small and black, white stripe along claval commissure. Crown and upper face dorsad of ocelli shagreen. Forewing with two subapical cells. Male pygofer with long stout ventral process extending along ventral margin and about as long as the pygofer; aedeagus with subapical pair of short retrose processes, each process bent at an angle about midlength dorsally.

Description. Female. Sternite VII more or less quadrangular, slightly narrowed posteriorly, about 1.7× as wide at base as long medially ( Fig. 61E ). Valvula I straight, broad basally, gradually narrowed distally, with short oblique strigae, sculptured area occupying distal 0.6 length ( Figs 65 MN). Valvula II straight, narrowed distally, with toothed area occupying distal 0.45 legnth, teeth distinct and separated by short space ( Figs 65 OP).

Material examined. INDIA: Himachal Pradesh: 1♂, 1♀, Simla , 14.x.1979, C.A. Viraktamath; Meghalaya: 1 ♀, Cherralunjee, 5.xi.1981, C.A. Viraktamath; several ♂, ♀, Shillong, 3.xi.1981, C.A. Viraktamath ( UASB). NEPAL: Kathmandu : 1 ♂, Shivapura, 20.v.–26.vi1979, ex Myrica esculenta, V.K. Thapa (UASB) .

Remarks. Pruthi (1936), Maldonado-Capriles (1965) and Viraktamath (1980) have adequately described this species. Bright greenish yellow coloration with small black spots at base of mesonotum easily distinguishes this species among the species of Idiocerini from the subcontinent. The Chinese species, Idioscopus bihamulus Wang, Dai & Webb (2022) also has one pair of subapical processes that are curved near midlength, however the processes of the aedeagal shaft in the Indian species are shorter than shaft and more acutely cured compared to those in the Chinese species wherein the processes are longer than shaft and obtusely curved; in addition the Indian species is bright yellowish green with small basal triangles on mesonotum compared to ochraceous species with one pair of round black spots on fore margin of head and large black basal triangles on mesonotum.

Figures

FIGURES 19A–F. Idioscopus bimaculatus (Pruthi), male: A–B, habitus, dorsal and lateral views; C, face; D, male genital capsule, lateral view; E, styles, connective and aedeagus, ventral view; F, aedeagus, connective and style, lateral view.

FIGURES 61A–R. Idiocerini of the Indian subcontinent, female sternite VII: A, Idiocerus cedarae; B, Metidioceus deodarae; C, M. gnezdilovai; D, Idiocerus sharmai; E, Idioscopus bimaculatus; F, I. clypealis. G, I. confuscous; H, I. irenae; I, I. nagpurensis; J, I. nitidulus; K, I. pretiosus; L, I. shillongensis; M, I. virescens; N, Jogocerus freytagi; O, Keralus webbi; P, Matangia capriliana; Q, M. inidca; R, M. thapai.

FIGURES 65A–P. Idiocerini of the Indian subcontinent, female valvula I, magnified view and valvula II, magnified view:A–D, Busoniomimus mudigerensis; E–H, Idiocerus cedarae; I–L, I. sharmai; M–P, Idioscopus bimaculatus.

FIGURES59A–L. Idiocerini andMegipocerini of the Indiansubcontinent,forewings:A,Balocha astuta; B,Amritodusatkinsoni; C, Bellacerus bellus; D, Busoniomimus manjunathi; E, B. mudigerensis; F, Idiocerus cedarae; G, Idioscopus bimaculatus; H, Idioscopus nitidulus; I, Jogina robustipennis; J, Jogocerus freytagi; K, Keralus webbi; L, Matangia capriliana.