Miniterpnosia, Lee, 2013

Lee, Young June, 2013, Description of a new genus, Miniterpnosia n. gen., and a new species of cicada (Hemiptera, Cicadidae, Cicadini, Leptopsaltriina) from Laos, Zoosystema 35 (1), pp. 5-10 : 6-7

Genus Miniterpnosia n. gen.

TYPE SPECIES. — Miniterpnosia chorus n. sp., by present designation.

SPECIES INCLUDED. — This genus also includes Terpnosia mega Chou & Lei, 1997 . This species is morphologically very similar to Miniterpnosia chorus n. gen., n. sp. and agrees well to the above description of Miniterpnosia n. gen. Here, this species is transferred from Terpnosia to Miniterpnosia n. gen. to become Miniterpnosia mega ( Chou & Lei, 1997) n. comb. Miniterpnosia n. gen. has been found from southern China and Indo-China.

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

DIAGNOSIS. — Wings hyaline, with no infuscations, with marginal areas extremely narrow. Length between bifurcation point into median (M) vein and median 1+2 (M 1+2) vein and bifurcation point into M vein and median 3+4 (M 3+4) vein of forewing about twice the length between bifurcation point into M vein and M 3+4 vein and base of M vein. Male opercula slightly longer than broad; widely separated. Fourth segment of male abdomen with no molar-like projections laterally. Timbal cover minute, rudimentary. Male abdominal sternites without tubercle-like projections. Uncus narrow, not bifurcate. Basal lobes of pygofer well developed.

DESCRIPTION

Body small (14.8-21.0 mm long in males), slender. Head wider than mesonotum. Inner area of pronotum concolourous with pronotal collar. Lateral pronotal collar not dentate. Wings hyaline, with no infuscations, with marginal areas extremely narrow. Forewing basal portion of radius anterior 2 (RA 2) vein about as long as or slightly shorter than longitudinal portion of RA 2 vein. Length between bifurcation point into M vein and M 1+2 vein and bifurcation point into M vein and M 3+4 vein about twice the length between bifurcation point into M vein and M 3+4 vein and base of M vein. Male opercula small, scale-like, slightly longer than broad, not extending beyond posterior margin of sternite II; widely separated from each other. Male abdomen cylindrical, slightly longer than head and thorax together. Posterior margin of male abdominal tergite 2 or 3 about as wide as or slightly narrower than mesonotum. Timbal cover minute, rudimentary. Fourth segment of male abdomen without molar-like projections laterally. Male abdominal sternites without tubercle-like projections. Male abdominal sternite VII distinctly separated from tergite 7 by folding. Male pygofer elliptical with narrowed apex in ventral view. Uncus narrow, not bifurcate. Basal lobes of pygofer well developed. Aedeagus slender near apex.

A B

C

FIG. 1. — Miniterpnosia chorus n. gen., n. sp., holotype, male, Xamneua , Laos: A, dorsal habitus ; B, ventral habitus; C, lateroventral view of a male operculum and a part of the abdomen. Body length 15,8 mm.