Euterpnosia Matsumura, 1917

Thai, Pham Hong, Thinh, Ta Huy & Yang, Jeng-Tze, 2010, A new cicada species (Hemiptera: Cicadidae), with a key to the species of the genus Euterpnosia Matsumura, 1917 from Vietnam, Zootaxa 2512, pp. 63-68 : 64

Genus Euterpnosia Matsumura, 1917

Euterpnosia Matsumura, 1917: 202 . Type species: Euterpnosia chibensis Matsumura, 1917 (Honshu, Japan).

According to Lee (2003), this genus is similar to Terpnosia or Leptosemia but distinguishable by the ovipositor protruding far beyond abdominal segment 9th; Euterpnosia can be distinguished from Leptosemia by the following characteristics: frontoclypeus moderately or substantially prominent anteriorly; male timbal cover much smaller, scale-like, mostly exposing timbal in dorsal view; male pygofer with a pair of basal lobes well developed; uncal lobe slender apically. The peculiar characteristic only for this genus is that each lateral part of the male 4th abdominal segment has a molar-like projection. Male pygofer oval in ventral view; basal lobe of pygofer with or without a subapical projection on inner side; uncal lobe pointed or rounded at apex; aedeagus very slender and very much protruding out of apex of uncal lobe.

Three described species occur in Vietnam: Euterpnosia crowfooti ( Distant, 1912) , Euterpnosia madhava ( Distant, 1881) , and Euterpnosia ruida Lei et Chou, 1997 . Below we present a key to the species of the genus Euterpnosia from Vietnam and describe a new species belonging to this genus.