Protambulyx euryalus is a species of moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Sphingidae

Sphingidae

Sphingidae is a family of moths , commonly known as hawk moths, sphinx moths and hornworms, that includes about 1,200 species . It is best represented in the tropics but there are species in every region . They are moderate to large in size and are distinguished among moths for their rapid,...

 family. It is known from Venezuela

Venezuela

Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...

, Colombia

Colombia

Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

, Ecuador

Ecuador

Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

, Peru

Peru

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

 and Bolivia

Bolivia

Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...

.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is 105-110 mm. Adults are similar to Protambulyx eurycles

Protambulyx eurycles

Protambulyx eurycles is a species of moth of the Sphingidae family. It is known from Suriname, Guyana, French Guiana, Colombia, Ecuador, Peru, Bolivia, Brazil, Costa Rica, Nicaragua and Mexico....

but the forewing marginal band is narrower and not crenulated and the hindwing postmedian line is curved and not angled.

Adults are probably on wing year round.

The larvae feed on Anacardium

Anacardium

Anacardium is a genus of flowering plants in the family Anacardiaceae, native to tropical regions of the Americas.-Selected species:*Anacardium corymbosum Barb.Rodr.*Anacardium excelsum L. - Wild Cashew*Anacardium giganteum Anacardium is a genus of flowering plants in the family Anacardiaceae,...

, Spondias

Spondias

Spondias is a genus of flowering plants in the cashew family, Anacardiaceae. The genus consists of 17 described species, 7 of which are native to the Neotropics and about 10 are native to tropical Asia...

, Erythoxylon and Comocladia species.