Pedesta bivitta (Oberthür, 1886)

(Fig 4E)

Pamphila bivitta Oberthür, 1886: 28 (Type locality: Ta Tsien Lou, Sichuan).

Thoressa bivitta: Evans, 1949: 255; Yuan et al. 2015: 374; Wu & Hsu, 2017: 1359.

Pedesta bivitta: Huang, 2019: 169 .

Material examined. 4 males, altitude 2940 m, 19. VI . 2018, Chayu county, Xizang Autonomous Region, P. R. China, leg. Chenglong Cao (SCAU) .

Diagnosis. Pedesta bivitta is unique within the genus Pedesta in having hindwing underside with several silver stripes which is absent in all the other species. Male genitalia (Fig 5E): this species is characterized by uncus broad at base and bifid, U-shaped at distal portion; socius short and slightly pointed; valvae asymmetrical: footstalk bifurcate, ventro-distal projection with outer edge not straight, covered with spines in right valva.

Distribution. China (Tibet *, Sichuan, Yunnan).