''Nyceryx stuarti'' 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 ...

Distribution

It is found from

Costa Rica Costa Rica, officially the Republic of Costa Rica, is a country in Central America. It borders Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the Pacific Ocean to the southwest, as well as Maritime bo ...

and

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...

and

Paraguay Paraguay, officially the Republic of Paraguay, is a landlocked country in South America. It is bordered by Argentina to the Argentina–Paraguay border, south and southwest, Brazil to the Brazil–Paraguay border, east and northeast, and Boli ...

Description

The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingsp ...

is about 66 mm. It is similar to ''

Nyceryx riscus ''Nyceryx riscus'' is a moth of the family Sphingidae. Distribution It is found from Belize and Mexico to Costa Rica and further south to Bolivia and Argentina. Description The wingspan The wingspan (or just span) of a bird or an ai ...

'', but larger and darker and the forewing apex is distinctly truncate. Nyceryx stuarti MHNT CUT 2010 0 198 Guyane française Belizon Pk4 973 female dorsal.jpg, Female dorsal
(coll. MHNT) Nyceryx stuarti MHNT CUT 2010 0 198 Guyane française Belizon Pk4 973 female ventral.jpg, Female ventral
(coll. MHNT)

References

Nyceryx Moths described in 1894 Taxa named by Walter Rothschild Sphingidae of South America Moths of Central America {{Dilophonotini-stub