Promustilia yajiangensis Wang, X. & Zolotuhin

Wang, Xing, Wang, Min, Zolotuhin, Vadim V., Hirowatari, Toshiya, Wu, Shipher & Huang, Guo-Hua, 2015, The fauna of the family Bombycidae sensu lato (Insecta, Lepidoptera, Bombycoidea) from Mainland China, Taiwan and Hainan Islands, Zootaxa 3989 (1), pp. 1-138 : 56

32. Promustilia yajiangensis Wang, X. & Zolotuhin , sp. nov. ( FIGURES 20 C, 20E)

Type locality: Bajiaolou Town, Yajiang County, Sichuan Province, China.

Diagnosis. This species is very similar to P. andracoides ,but can be distinguished by the following characters: forewing with postmedial line obscure; submarginal line almost straight over most of its length, edged with white; hindwing with postmedial line straight, bordered with white; saccus narrow.

Description. Male: Wingspan = 35–37 mm; forewing length = 19–22 mm; antennal length = 6–9 mm; body length = 14–16 mm.

Head. Vertex covered with yellow hair; antennae brown, basal 2/3 pectinate, apical 1/3 serrate, base dorsally half white, half dark brown.

Thorax. Densely covered dorsally with brown hairs over ocher; ventrally brown; forewing dark brown over distal half, lower half light brown; costa and inner edge straight; costa at 1/5 from base with a black spot; discal cell with a small black spot; antemedial and postmedial lines almost straight, dark brown; the outer edge of the latter highlighted in white; hindwing is divided into pale and dark brown halves as the forewing; discal cell with a small black spot; postmedial line straight, dark brown, outer edge highlighted in white; inner edge with dark brown fringes, slightly concave near tornus.

Abdomen. Densely covered with black hairs, mixed with a small amount of red-brown and reddish-brown hairs..

Male genitalia. Sternite 8 ovoid, posterior margin slightly concave, anterior margin broadly rounded. Uncus bifid, the lobes finger-shaped; gnathos a broadly triangular and apically rounded plate; valvae large, broad basally, apically angled and broadly rounded, with slender hairs; aedeagus expanded apically, ventral margin produced as a short, blunt process; vesica covered with numerous small sharply pointed cornuti arranged into several fields.

Female. Unknown.

Specimens examined. Holotype, male, Bajiaolou Town, Yajiang County, Sichuan Province, China, 6.VIII.2004, Min Wang & Xiao-Ling Fan leg. (SCAU); Paratype, 1 male, same data as holotype but 23.VII.2009, Min Wang & Guo-Hua Huang leg. (HUNAU).

Bionomics. Larval host unknown.

Etymology. The scientific name is derived from the type locality, Yajiang county.

Distribution. Mainland China (Sichuan).

Remarks. This new species is endemic to Sichuan Province.

Figures

FIGURE 20. Adults and male genitalia of Promustilia spp. A. P. andracoides, male (Yunnan), holotype; B. P. andracoides, male (Yunnan); C. P. yajiangensis sp. nov., male (Sichuan), holotype; D. P. andracoides, male genitalia (Yunnan); E. P. yajiangensis sp. nov., male genitalia (Sichuan), holotype.