Megacephalomana stygium is a species of moth of the family Noctuidae (owlet moths). It is found in Madagascar.[1]
This species has a big head, with bipectinated antennaes with a length of 2/3 of the forewings. Head and chest are black-brown, antennae darkbrown, forewings black-brown with some violet shine and 3 dented transversal lines.It has a wingspan of 46mm.[2]