Olidiana tonkinensis, 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 : 46-47

Olidiana tonkinensis , sp. nov.

( Plate 4F , Fig. 224-230 )

Description. Length. Male 7.60 mm., female unknown.

External morphology. Moderately large, robust species. General color dark brown to black throughout; forewings translucent; face black throughout; head narrower than pronotum, anterior margin broadly rounded; crown very broad, broader than width of eyes, slightly produced anteriorly, lateral margins convergent basally; eyes large, semiglobular; clypeus long, broad, broader anteriorly than posteriorly; clypellus short, about 1/3 as long as clypeus, broad, apex flared laterally.

Male genitalia. Pygofer in lateral view narrowly triangular, small lobe subapically, few long microsetae apically ( Fig. 224 ); aedeagus moderately long, tubular, in dorsal view with broad, setose, subapical, triangulate process ( Fig. 225, 226 ); style with moderately long, somewhat slender apophysis ( Fig. 227, 228 ); dorsal connective moderately long, slender ( Fig. 225, 226 ); connective large, anterior arms with lateral margins extended anterior to membrane, without medial ridge, stem short, sub-quadrate ( Fig. 229 ); subgenital plate moderately long, sinuate, glabrous ( Fig. 230 ).

Material examined. Holotype male. TONKIN ( VIETNAM): region de Hoa-binh / Museum Paris , XI – 1934, de Cooman ( NMHN).

Etymology. The species is named after the region in which it was collected in Vietnam.

Remarks. From species which display a broad (laminate), setose, aedeagal process ( Olidiana laminapellucida , O. laminaspinosa , O. zhengi ), O. tonkinensis can be distinguished by the narrower, triangulate, laminate, aedeagal process, glabrous subgenital plate and narrow apophysis of the style.

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 224-230. Genitalia, Olidiana tonkinensis, sp. nov. 224) Male pygofer, lateral view. 225) Aedeagus and dorsal connective, lateral view. 226) Aedeagus and dorsal connective, dorsal view. 227) Style, lateral view. 228) Style, dorsal view. 229) Connective, caudal view. 230) Subgenital plate, ventral view.