''Gnathothlibus collardi'' is a moth of the family Sphingidae. It is a hybrid between a female ''

Philodila astyanor ''Philodila'' is a genus of moths in the family Sphingidae first described by Walter Rothschild and Karl Jordan in 1903. Its only species, ''Philodila astyanor'', described by Jean Baptiste Boisduval in 1875, is known from the Society Island ...

'' and a male ''

Gnathothlibus eras ''Gnathothlibus eras'' is a moth of the family Sphingidae. Distribution It is known from the eastern Sunda Islands (from Java eastward), Sulawesi, the Moluccas, the Philippines, New Guinea, the Solomon Islands, Micronesia and eastern ...

''. It is known from Tahiti. The length of the forewings is about . It is similar to ''

'' but the forewings are rather more similar to '' Gnathothlibus saccoi'' and the hindwings are identical to '' Gnathothlibus dabrera''. The forewing outer margin is slightly angled. The underside of the thorax are darker and more orange-pink, thus contrasting less with the underside of the abdomen than in ''Gnathothlibus eras''. The forewing upperside pattern is more contrasting than in ''Gnathothlibus dabrera'' or ''Gnathothlibus eras'', but most similar to ''Gnathothlibus saccoi''. The forewing underside is lacking the narrow black line running inward from the apex of ''Gnathothlibus eras'' and the basal yellow area is barely extending to the end of the discal cell. There is a brown and broad marginal band on the hindwing, with an irregular inner margin produced as narrow streaks along the veins.

Taxonomy

''Gnathothlibus collardi'' was described as a species, but by combining barcodes, morphology and a nuclear marker, research has shown that it is actually an F1 hybrid between two closely related species.

References

collardi Moths described in 2002 Endemic fauna of Tahiti {{Macroglossini-stub