Andraca

Zolotuhin, Vadim V., 2012, Taxonomic remarks on Andraca Walker, 1865 (Lepidoptera: Bombycidae) with descriptions of five new species, Zootaxa 3262, pp. 22-34 : 23

Subgenus Andraca

Diagnosis. The subgenus includes most known species of middle size with short, relatively broad and strongly falcate fore wings. Both wings are usually of dark reddish-brown with violet-brown coloration depending of species with darker pattern and sometimes with silver shadows near by apex; external field usually very dark. Wing pattern well developed, consists of two more or less parallel medias, the postmedia of the forewings angles back to the costa near by apex; in dark specimens the pattern can be hardly visible. Hind wings mostly angled or dentate, in 2 species broadly rounded. In male genitalia uncus is long, strongly flattened, with basal narrowing and apical cut. Gnathos is presented as two long and narrow hooks, sometimes dentate; valvae flattened, with more or less distinct costal appendix in the middle zone of the valva; often some kind of harpa also develops; aedeagus short, tubular with numerous needle-shaped cornuti grouped in few rows; sternum 8 without characteristic notches or protuberances on caudal edge. Five species are included, two of them are described here as new. Range of the subgenus is limited to the Himalayas ( India, Nepal), southern China, Vietnam, Thailand, Myanmar, Palawan and Java.