''Hippotion geryon'' is a

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 Sphingidae. It is known from

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 ...

and the

Comoro Islands The Comoro Islands or Comoros ( Shikomori ''Komori''; ar, جزر القمر , ''Juzur al-qamar''; french: Les Comores) form an archipelago of volcanic islands situated off the southeastern coast of Africa, to the east of Mozambique and northw ...

. It is similar to ''

Hippotion osiris ''Hippotion osiris'' is a moth of the family Sphingidae. It is common throughout most of the Ethiopian Region, including Madagascar and the Seychelles. Occasional vagrants have been recorded from Spain , image_flag = Bandera de Espa� ...

'', but is immediately distinguishable by the lack of pink coloration on the hindwing upperside and the single pair of black abdominal patches. The upperside of the antennae is conspicuously pink-scaled. The base of the abdomen has a single pair of large, square, black subdorsal patches. The forewing upperside is very similar to ''Hippotion osiris'' but differing in the distal part of the longitudinal pale band through the discal cell being absent beyond the discal spot. The hindwing upperside is dark brown with a buff patch on the inner margin and a buff postmedian band.

References

* Pinhey, E. (1962): ''Hawk Moths of Central and Southern Africa''. Longmans Southern Africa, Cape Town. Hippotion Moths described in 1875 Moths of Madagascar Moths of the Comoros {{Macroglossini-stub