Xylophanes rhodotus is a 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 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...

.

It is intermediate between Xylophanes eumedon

Xylophanes eumedon

Xylophanes eumedon is a moth of the Sphingidae family. It is known from Mexico.It is similar to Xylophanes aristor but smaller and the forewing pattern is much more contrasted. It is distinguishable from most related species by the partial fusion and apical pinkish flush of the pale yellow spots of...

and Xylophanes titana

Xylophanes titana

Xylophanes titana is a moth of the Sphingidae family. It is known from Mexico, Belize, Guatemala, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Ecuador, Peru, Bolivia, Paraguay, Argentina, Venezuela, French Guiana, Brazil and probably Guyana and Suriname.The wingspan is 60–88 mm. It is...

. The tegula has a golden medial line. The dorsal lines of the upperside of the abdomen are pale and broad and divided medially by an indistinct, thin olive-green line that becomes broader and more distinct towards the abdomen base. The black basal and yellow lateral abdominal patches are less developed than in Xylophanes eumedon. The pattern of the forewing upperside is similar to that of Xylophanes titana, but darker. The median band of the hindwing upperside consists of sharply defined and distinct pale yellow spots.

Adults are on wing in June.

The larvae probably feed on Rubiaceae

Rubiaceae

The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...

 and Malvaceae

Malvaceae

Malvaceae, or the mallow family, is a family of flowering plants containing over 200 genera with close to 2,300 species. Judd & al. Well known members of this family include okra, jute and cacao...

species.