Helcystogramma perelegans is a moth in the Gelechiidae family. It was described by N. Omelko and M. Omelko in 1993. It is found in south-eastern Siberia, Korea, Japan and China (Hunan, Tianjin). The wingspan is 10-11.5 mm. The forewings have dark silvery-grey markings with a purplish-blue metallic lustre.