Neoterpnosia, Lee & Emery, 2014

Lee, Young June & Emery, David, 2014, Four species of a new genus, Neoterpnosia n. gen., including two new species (Hemiptera: Cicadidae: Cicadinae: Leptopsaltriini: Euterpnosiina), Zoosystema 36 (3), pp. 691-702 : 692-693

Neoterpnosia n. gen.

TYPE SPECIES. — Terpnosia oberthuri Distant, 1912 , by present designation.

ETYMOLOGY. — The generic name means “new Terpnosia ”, having the prefix of neo-.

DIAGNOSIS. — This genus is distinguished from any other genera in Euterpnosiina by the following characters: fore wing basal portion of RA2 (or basal vein of apical cell 1) very short, about one third or less than one third as long as longitudinal portion of RA2 (or longitudinal vein of apical cell 1); fore wing basal portion of RA2 forming an angle of about 135 degrees to longitudinal portion of RA2; male abdominal tergites 2-5 or 2-6 with sublateral or lateral patches with a lighter color (which is almost same as the color of abdominal sternites); male abdominal segments 3, 4, and 5 each moderately inflated laterally; male abdominal sternites without tubercle-like projections. This genus appears to be closely related to Calcagninus Distant, 1892 considering the similarity in RA2 vein of the fore wing, but Calcagninus is distinguished by the following characters: head and thorax more slender; male abdominal sternites III and IV with tubercle-like projections; male abdominal segments 3, 4, and 5 not inflated laterally.

DESCRIPTION

Body small (18.9-21.7 mm long in males). Head about as wide as or narrower than base of mesonotum, depending on species. Lateral pronotal collar not dentate. Wings hyaline with marginal areas extremely narrow. Fore wing basal portion of RA2 about one third or less than one third as long as longitudinal portion of RA2.Fore wing basal portion of RA2 forming an angle of about 135 degrees to longitudinal portion of RA2. Male opercula very small, scale-like, not extending beyond posterior margin of sternite II; widely separated from each other.Timbal with five ribs. Male abdomen distinctly longer than head and thorax together. Posterior margin of male abdominal tergite 3 distinctly wider than anterior margin of mesonotum.Timbal cover minute, rudimentary, much wider than long. Fourth segment of male abdomen without molarlike projections laterally. Male abdominal sternites without tubercle-like projections. Male pygofer narrowly elliptical in ventral view, with posterolateral margins parallel-sided. Uncus not bifurcate, with incised apex. Basal lobe of pygofer well developed. Aedeagus thin. Ovipositor moderately protruding beyond abdominal segment 9.

SPECIES INCLUDED. — Besides the type species Neoterpnosia oberthuri ( Distant, 1912) n. comb. and the two new species described below, this genus also includes Terpnosia versicolor Distant, 1912 . This species is morphologically very similar to Neoterpnosia oberthuri n. comb. and is morphologically compatible with the above description of Neoterpnosia n. gen. Here, Terpnosia versicolor is transferred from Terpnosia Distant, 1892 to Neoterpnosia n. gen. to become Neoterpnosia versicolor ( Distant, 1912) n. comb. Neoterpnosia n. gen. has been found from China (western part), Vietnam, Myanmar, northeastern India (Arunachal Pradesh), Bhutan, and Nepal.

KEY TO THE SPECIES OF NEOTERPNOSIA N. GEN.

1. M2 derived from u2 ................................................................................................... 2

— M2 derived from u3 ................................................................................................... 3

2. Uncus gradually tapering to apex; basal lobe of pygofer without spine-like protrusion subapically ......................................... Neoterpnosia oberthuri ( Distant, 1912) n. comb.

— Uncus with widened subapex; basal lobe of pygofer with spine-like small protrusion subapically ............................................................. Neoterpnosia donghai n. gen., n. sp.

3. Head about as wide as base of mesonotum; pronotal collar with lateral margins distinctly concave; basal lobe of pygofer with dull apex; aedeagus moderately slender and moderately protruding .......................................... Neoterpnosia versicolor ( Distant, 1912) n. comb.

— Head distinctly narrower than base of mesonotum; pronotal collar with lateral margins slightly convex; basal lobe of pygofer with acute and long apex; aedeagus very slender and much protruding ................................................. Neoterpnosia personalis n. gen., n. sp.