Periacerus bidentatus Viraktamath & Parvathi

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 : 73

Periacerus bidentatus Viraktamath & Parvathi

Figs 39A–J , 62A , 69M–P .

Periacerus bidentatus Viraktamath and Parvathi 2002: 494 , figs 21–29.

Diagnosis. Ochraceous. Broad area on crown continued on face to ocelli brownish. One median stripe joining a transverse stripe anterad of scutoscutellar suture brown. Male pygofer anal collar distal process entire. Aedeagal shaft apex not hooked, with one subapical tooth on either side laterally and shaft dorsal surface sometimes serrate. Female sternite VII with posterior margin convex, about 2× as wide as long medially, posteriorly convex ( Fig. 62A ).

Female genitalia. Valvula I straight, widened beyond basal 0.33 length being widest at midlength, then narrowed, dorsal sculpturing not prominent, finely strigate strigae oblique ( Figs 69M,N ). Valvula II gradually widened from basal 0.33, toothed area angular, being widest at midlength, teeth starting at the highest width, each tooth small, closely spaced ( Figs 69 OP).

Material examined. Paratype ♂, INDIA: Karnataka: 19 km W. Mudigere, vi.1980, C.A. Viraktamath ( UASB). Other material examined. INDIA: Karnataka: 1 ♂, Mudigere , 13.xi.1983, C. Parvathi. INDIA: Tamil Nadu: 1 ♂, 1♀, Coonoor, Wellington, 12.viii.1979, S. Viraktamath ( UASB).

Remarks. Viraktamath & Parvathi (2002) adequately described and figured this species. Female genitalia is described here for the first time. This species differs from both P. lankensis and P. lalithae in having the aedeagal shaft apex not hooked, with one subapical tooth on either side on lateral surface of shaft.

Figures

FIGURES 39A–J. Periacerus bidentatus Viraktamath & Parvathi: A–C, paratype male:A–B, habitus, dorsal and lateral views; C, face; D–F, female paratype, D–E, habitus, dorsal and lateral view; F, face; G, male genital capsule, lateral view; H, styles, connective and aedeagus, ventral view; I, styles, connective and aedeagus, lateral view; J, aedeagus, ventral view.

FIGURES 62A–L. Idiocerini and Megipocerini of the Indian subcontinent, female sternite VII: A, Periacerus bidentatus; B, P. lalithae; C, Tasnimocerus clypeatus D, Ulavius anasuyae; E, U. decoratus; F, U. dworakowskae; G, U. jayashriae; H, U. parvathiae; I, U. poornachandrai; J, U. spectabilis; K, Busonia distanti; L, B. manipurensis.

FIGURES 69A–P. Idiocerini of the Indian subcontinent, female valvula I, magnified view and valvula II, magnified view:A–D, Matangia thapai; E–H, Metidocerus deodarae; I–L, M. gnezdilovai; M–P, Periacerus bidentatus.