''Callionima gracilis'' is a species of

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

in the family

Sphingidae The Sphingidae are a family of moths commonly called sphinx moths, also colloquially known as hawk moths, with many of their caterpillars known as hornworms. It includes about 1,450 species. It is best represented in the tropics, but species ar ...

. It was originally described by Karl Jordan as ''Hemeroplanes gracilis'' in 1923. It is endemic to

Cuba Cuba, officially the Republic of Cuba, is an island country, comprising the island of Cuba (largest island), Isla de la Juventud, and List of islands of Cuba, 4,195 islands, islets and cays surrounding the main island. It is located where the ...

. Adults are probably on wing in multiple generations. In size and colour, it is similar to ''

Callionima grisescens ''Callionima grisescens'' is a species of moth in the family Sphingidae. It was originally described by Rothschild as ''Calliomma grisescens'', in 1894. Distribution Is known from Argentina, Paraguay, Bolivia and Brazil. Biology Adults proba ...

'', but with a truncate forewing apex, strongly excavate below, and a larger silver spot on the forewing upperside, clearly divided into two branches. The forewing upperside has the lower branch of the silver spot within a diagnostic ill-defined, longitudinal black band running between the antemedian and submarginal lines through the centre of the wing.

References

G Moths of Cuba Moths described in 1923 Endemic fauna of Cuba Taxa named by Karl Jordan {{Dilophonotini-stub