Hista hegemon is a moth in the Castniidae family. It is found in south-eastern Brazil. The length of the forewings is 39 mm for males and 53 mm for females. The maculae on the forewings are slightly darker than the ground colour. There are light yellow hues medially on the hindwings, with two extradiscal spotbands fused at the tornus forming a v-shape which is positioned horizontally. Adults are sexually dimorphic. Subspecies Hista hegemon hegemon (Brazil) Hista hegemon menetriesi (Boisduval, [1875]) (Brazil) Hista hegemon variegata (Rothschild, 1919) (Brazil: Santa Catarina) Etymology The specific epithet is derived from the Greek word hegemon (meaning "leader"). References ; ; 2010: Revision of Hista Oiticica (Lepidoptera: Castniidae) and discussion on the validity of its subspecies. Zootaxa, 2421: 1–27. Preview Moths described in 1839 Castniidae