Two new species of Thymistadopsis Walker, 1865, and one new record from Xizang, China (Lepidoptera, Drepanidae, Drepaninae)

This paper describes two new species of Thymistadopsis Warren, 1922 from Xizang, China: Thymistadopsis chayuensis Pan & Yang, sp. nov. and Thymistadopsis nanyigouensis Pan & Yang, sp. nov. Additionally, a third species, Thymistadopsis trilinearia (Moore, 1868), is newly recorded from Xizang. In this study, morphological taxonomy and anatomical methods were used to study the external morphological characteristics, vein and male and female genitals of adults as the basis for identification. In this paper, adult and male female genitalia images of two new species and one newly recorded species in Xizang were provided, and their identification characteristics and distribution at home and abroad were described in detail. The specimens are preserved in the Institute of Plateau Ecology, Xizang Agriculture and Animal Husbandry University.