Olidiana filiata, 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 : 48-49

Olidiana filiata , sp. nov.

( Plate 4I , Fig. 252-258 )

Description. Length. Male 9.20 mm., female unknown.

External morphology. Large, moderately robust species. General color black with numerous yellow spots on translucent forewings, mesonotum, and pronotum; crown and eyes dark brown; face pale yellow; clypeus with orange longitudinal stripe on inner lateral margins; clypellus pale orange; head distinctly narrower than pronotum, anterior margin somewhat acutely angled; crown narrow, narrower than width of eyes, moderately produced beyond anterior margin of eyes, lateral margins convergent basally; eyes large, elongate ovoid; pronotum moderately large, slightly longer medially than crown, surface bullated; mesonotum very large, about half longer medially than pronotum; clypeus long, narrow, lateral margins broadly convex; clypellus long, about 1/3 as long as clypeus, narrow, with slight, inflated longitudinal ridge medially, apex flared laterally.

Male genitalia. Pygofer in lateral view narrowly triangular, small lobe apically, glabrous ( Fig. 252 ); aedeagus asymmetrical, shaft long, narrowly tubular in distal 2/3, inflated in basal 1/3, in dorsal and lateral views apex recurved with apical long process, process sub-quadrate basally, trumpet shape in dorsal 1/3 with long, narrow setose process attached medially, extending basally beyond midlength of shaft ( Fig. 253, 254 ); style long, in dorsal view pendulate in distal ½, broad, finely striate, spiculate in lateral view ( Fig. 255, 256 ); dorsal connective long, narrow, sinuate ( Fig. 253, 254 ); connective large, anterior transparent arms very broad, medial ridge short, stem long, digitate ( Fig. 257 ); subgenital plate long, broad, inner lateral margin broadly concave, glabrous ( Fig. 258 ).

Material examined. Holotype male. VIETNAM: Tam Dao Mts. , June 1991, V. Novotny/ B12/ 108 SP, Brit. Mus. 1994-29 ( BMNH).

Etymology. The species name is descriptive for the slender, secondary, setaceous process arising from the apical aedeagal process.

Remarks. The long, slender, setaceous accessory process on the apical, aedeagal process and the spiculated, pendulate style will distinguish O. filiata from other species.

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 252-258. Genitalia, Olidiana filiata, sp. nov. 252) Male pygofer, lateral view. 253) Aedeagus and dorsal connective, lateral view. 254) Aedeagus and dorsal connective, dorsal view. 255) Style, lateral view. 256) Style, dorsal view. 257) Connective, caudal view. 258) Subgenital plate, ventral view.