Cephonodes apus 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 the Islands of Réunion

Réunion

Réunion is a French island with a population of about 800,000 located in the Indian Ocean, east of Madagascar, about south west of Mauritius, the nearest island.Administratively, Réunion is one of the overseas departments of France...

 and Mauritius

Mauritius

Mauritius , officially the Republic of Mauritius is an island nation off the southeast coast of the African continent in the southwest Indian Ocean, about east of Madagascar...

.

The upperside of the abdomen is bicoloured, the anterior half green, the posterior half red. The upperside of the head, thorax, wing bases and first four abdominal segments are unicolorous green. Abdominal segment five is red, segment six to eight are red mixed with green. The abdominal tuft is orange-brown. The underside of the abdomen is mixed pale yellow and pale orange.

The larvae feed on Antirhea borbonica.