Torodora osamensis Park, 2013

Torodora osamensis Park View in CoL , sp. nov.

( Figs 2D–F View Figure 2 ; 3D–F View Figure 3 )

Type

Holotype. ♂, Cambodia, Prov. Pursat (Osam), 3 May 2010 (Bae, Chae and Vi), gen. slide no. CIS-6062 / Park . Paratypes. 1♂, same data as the holotype, gen. slide no. CIS- 6090 / Park .

Diagnosis

This new species is externally similar to T. parotidosa (Wu) , which was described from China, with rough scales on the second segment of the labial palpus ventrally, but the loose scales are hair-like, whereas the latter has normal rough scales. The forewing venation also slightly differs with R 3 and R 4 stalked for nearly half their length, whereas R 3 and R 4 stalked for basal one-third of length in the latter. The male genitalia can be differentiated by the stouter uncus, the larger tongue-shaped caudal process of the juxta, and more elongated cucullus. However, the aedeagus is very similar to that of T. parotidosa .

Description

Adult ( Figure 2D–F View Figure 2 ). Wingspan 16–17 mm. Head, tegula, and thorax dark fuscous dorsally. Basal segment of antenna slender, greyish orange, densely speckled with dark-fuscous scales; flagellum greyish orange, more or less thick, as much as width of basal segment, gradually slender beyond two-thirds of length. Second segment of labial palpus long, with hair-like, loose scales ventrally, dark brown on outer surface with orange-white apex, orange white on inner surface; third segment slender, as long as second segment, dark brown on ventral surface. Forewing evenly covered with darkbrown scales, with blackish reniform stigma at end of cell; costa nearly straight, but slightly arched beyond three-quarters of length; small orange-white costal patch presented at three-quarters of length; apex obtuse; termen concave beyond apex, sinuate, with distinct blackish scales along margin; fringe with narrow basal line, dark brownish medially; venation with R 2 closer to R 3+4 than R 1, distance between R 1 and R 2 about 1.5 times length of R 2 to R 3+4; R 3 and R 4 stalked before middle; R 4 and R 5 stalked beyond two-thirds of length; R 5 to termen; M 2 close to M 3 at base; M 3 and CuA 1 stalked for basal two-fifths. Hindwing broader than forewing, pale brownish grey; apex more or less obtuse; termen sinuate; fringe coloured the same throughout, with narrow orange-white basal line; venation with M 3 and CuA 1 short stalked. Hind tibia with dark-brown scales dorsally, with white-orange apex. The female is unknown.

Male genitalia ( Figure 3D–F View Figure 3 ). Uncus heavily sclerotized, stout, gently bent downward, with round apex. Gnathos well developed with strongly bent median process. Valva broad basally, with triangular angle at basal one-fifth of costa; costa gently concave; cucullus elongate with round apex, median part nearly parallel margins. Juxta with large, tongue-shaped caudal process which about one-half length of tegumen. Saccus slightly concave on anterior margin. Aedeagus very stout, as long as valva, globular at base; cornuti consist of two similar length long bars which are coiled in basal half, a large sclerotized plate bearing spinules, and a small dentate lobe near base.

Distribution

Cambodia ( Pursat Prov.).

Etymology

This species name is derived from the type locality.