Taharana biavicula, Nielson, 2015

Nielson, M. W., 2015, A revision of the tribe Coelidiini of the Oriental, Palearctic and Australian biogeographical regions (Hemiptera: Cicadellidae: Coelidiinae), Insecta Mundi 2015 (410), pp. 1-202 : 61-62

Taharana biavicula , sp. nov.

( Plate 5H , Fig. 311-317 )

Description. Length. Male 6.90 mm., female unknown.

External morphology. Small, slightly robust species. General color black. Forewings somewhat hyaline with numerous, small, light brown, irregular shaped markings in cells, veins with short, dark yellow stripes; mesonotum black with dark yellow spots; pronotum black, bullae dark yellow; crown light brown with few black markings; eyes grey; face light to dark brown, clypeus with dark brown, longitudinal band on inner lateral margins; clypellus with 2 separate, black, transverse stripes basally; head narrower than pronotum, anterior margin narrowly rounded; crown narrower than width of eyes, produced anteriorly about ¼ entire median length, elevated, lateral margins convergent basally; eyes large, elongate ovoid; pronotum large, about half again as long medially as crown, surfaced bullated; mesonotum large, nearly twice as long medially as pronotum; clypeus long, moderately broad, lateral margins nearly parallel, clypellus short, about 1/3 as long as clypeus, narrow, apex flared.

Male genitalia. Pygofer in lateral view rectangulate in basal half, glabrous, caudodorsal process long, robust, apex slightly aviculate, caudoventral process very narrow in basal ¾, apex buccinate, caudal margin serrate ( Fig. 311 ), in dorsal view caudodorsal processes flared apically ( Fig. 312 ); aedeagus moderately long, shaft tubular, slightly inflated in basal 1/ 3 in ventral and lateral views, finely toothed in apical 1/5 on dorsal margin, gonopore distad of middle ( Fig. 313, 314 ); style small, apophysis digitate, about as long as base ( Fig. 315 ); dorsal connective short, narrow ( Fig. 313 ); connective moderately large, anterior arms tapered, medial ridge complete, stem sub ovate ( Fig. 316 ); subgenital plate long, narrow, slightly sinuate, glabrous ( Fig. 317 ).

Material examined. Holotype male. THAILAND: Loei Phu Kradueng NP, mixed deciduous forest south of Na / Noy forest unit, 16 o 49.099’N 101 o 47.624’E., 276 m., pan traps, 17 / 18.xi.2006, Prasit Gongphucam, leg., T1069 ( QSBG).

Etymology. The name of the species is descriptive for the avicular apex of the pygofer caudodorsal processes in lateral and dorsal views.

Remarks. From species with apical triangulate caudoventral processes, T. biavicula can be separated by the aviculate apex of the caudodorsal processes.

Figures

PLATE 5. A-I. Dorsal habitus. (A) Singillatus gracilis, sp. nov.; (B) Singillatus ventrospinatus, sp. nov.; (C) Taharana caverna, sp. nov.; (D) Taharana sublamina, sp. nov.; (E) Taharana abstrusa, sp. nov.; (F) Taharana biunca, sp. nov.; (G) Taharana lacertosa, sp. nov.; (H) Taharana biavicula, sp. nov.; (I) Taharana brevicutata, sp. nov.

Figures 311-317. Genitalia, Taharana biavicula, sp. nov. 311) Male pygofer, lateral view.312) Pygofer caudodorsal processes, dorsal view. 313) Aedeagus and dorsal connective, lateral view. 314) Aedeagus, dorsal view. 315) Style, lateral view. 316) Connective, caudal view. 317) Subgenital plate, ventral view.