''Megacephalomana stygium'' is a species of

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

of the family

Noctuidae The Noctuidae, commonly known as owlet moths, cutworms or armyworms, are a family of moths. They are considered the most controversial family in the superfamily Noctuoidea because many of the clades are constantly changing, along with the other f ...

(owlet moths). It is found in

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

. 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.Archive.org: ''Stettiner Entomologische Zeitung'' Vol.42 (1881) pages:217–218
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References

Megacephalomana Moths described in 1881 Moths of Madagascar Moths of Africa {{Calpinae-stub