Olidiana inaequabilia, 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 : 46

Olidiana inaequabilia , sp. nov.

( Plate 4D , Fig. 217-223 )

Description. Length. Male 8.00 mm., female unknown.

External morphology. Moderately large robust species. General color black with 1 moderately large, ivory spot near middle of costa, small ivory spot at apex of clavus, narrow, ivory band on apex of forewings; head light brown; face black except for large sub-quadrate ivory spot below eyes; head narrower than pronotum, anterior margin broadly rounded; crown narrower than width of eyes, slightly produced anteriorly, lateral margins convergent basally; eyes large, elongate ovoid; pronotum large, longer medially than crown, surface bullated; mesonotum large, about half longer than pronotum; forewing venation typical; clypeus long, broader anteriorly than posteriorly, lateral margins slightly convergent posteriorly; clypellus short, about 1/3 as long as clypeus, narrow, inflated longitudinally on middle, apex flared laterally.

Male genitalia. Pygofer in lateral view broadly triangular, small lobe apically, with short digitate caudoventral lobe, glabrous ( Fig. 217 ); aedeagus with long, narrow, tubular shaft, in dorsal view very long, setose process subapically, long glabrous spine subbasally on process ( Fig. 218, 219 ); style moderately long, with robust apophysis, apex with small excavation apically in dorsal view ( Fig. 220, 221 ); dorsal connective long, narrow ( Fig. 218, 219 ); connective moderately large, anterior arms together subquadrate, medial ridge short, stem small, ovate ( Fig. 222 ); subgenital plate long, narrow, glabrous ( Fig. 223 ).

Material examined. Holotype male. THAILAND: Loei-Na Haeo Chang Tok , 17.v.2003 (23035), leg. P. Grootaert ( IRSNB).

Etymology. The name of the species is descriptive for the varied length of the accessory processes on the aedeagal subapical spine.

Remarks. Olidiana inaequabilia is similar to species which have setose aedeagal spine ( O. genista (Nielson) , O. laminispinosa (Zhang) , O. zhengi (Zhang)) and can be distinguished from them by the much narrower aedeagal spine and length of its accessory processes.

Figures

PLATE 4. A-I. Dorsal habitus. (A) Olidiana parafringa, sp. nov.; (B) Olidiana lata, sp. nov.; (C) Olidiana vincula, sp. nov.; (D) Olidiana inaequabilia, sp. nov.; (E) Olidiana tonkinensis, sp. nov.; (F) Olidiana bispiculata, sp. nov.; (G) Olidiana implicata, sp. nov.; (H) Olidiana pennata, sp. nov.; (I) Olidiana filiata, sp. nov.

Figures 217-223. Genitalia, Olidiana inaequabilia, sp. nov. 217) Male pygofer, lateral view. 218) Aedeagus and dorsal connective, lateral view. 219) Aedeagus and dorsal connective, dorsal view. 220) Style, lateral view. 221) Style, dorsal view. 222) Connective, caudal view. 223) Subgenital plate, ventral view.