Stenopsestis alternata is a moth in the Drepanidae family. It is found in India (Sikkim), Nepal, Burma, China (Gansu, Hubei, Jiangxi, Hunan, Guangdong, Guangxi, Sichuan, Yunnan, Tibet) and Thailand. The forewings are pale metallic cupreous-brown, crossed by a broad basal, a median, and two narrow submarginal greenish-grey indistinct bands. There are some black basal spots, an ante- and postmedian transverse black sinuous line and black and white streaks externally along the veins. The hindwings and abdomen are pale cupreous-brown.