Sundacossus Yakovlev, 2006

Yakovlev, Roman V. & Korzeev, Andrei I., 2022, Review of the genus Sundacossus Yakovlev, 2006 (Lepidoptera: Cossidae) with description of one new species from Lombok Island (Indonesia), Ecologica Montenegrina 52, pp. 27-32 : 28-30

Genus Sundacossus Yakovlev, 2006

Tinea 19 (3): 194.

Type species (by original designation): Sundacossus timur Yakovlev, 2006 ).

Redescription

Size medium. Antenna unipectinate. Fore wing relatively long, apically sharp. Fore wing basally grey, almost without pattern, with distinct reticulated pattern of thin dark transverse bands on grey background from discal area to outer edge. Hind wing without pattern.

Male genitalia. Uncus robust, apically with sclerotized zone; gnathos arms short; gnathos robust, covered with tiny spikes; valve relatively long, with more or less expressed crest on costal edge on border between sclerotized and membranous part; transtilla arms small, reduced, triangular; juxta robust, with long, strongly sclerotized lateral processes, directed relative to each other at an acute angle; saccus robust, semicircular; phallus shorter than valve, almost straight; distal aperture of phallus in dorso-apical position, about 1/3−1/2 of phallus in length, phallus apically acute, two large cuneal cornuti in vesica.

Female unknown.

Diagnosis. The genus is very isolated among the oriental representatives of the subfamily Cossinae , it differs in the almost complete reduction of the transtilla arms, the well developed lateral processes of the juxta and the two cuneal cornuti in the vesica.