Cephonodes armatus 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 Fiji

Fiji

Fiji , officially the Republic of Fiji , is an island nation in Melanesia in the South Pacific Ocean about northeast of New Zealand's North Island...

 and the northern Mariana Islands

Mariana Islands

The Mariana Islands are an arc-shaped archipelago made up by the summits of 15 volcanic mountains in the north-western Pacific Ocean between the 12th and 21st parallels north and along the 145th meridian east...

.

The upperside is deep green. It is similar to Cephonodes janus janus

Cephonodes janus

Cephonodes janus is a moth of the Sphingidae family. It is known from Queensland, Flores and New Caledonia.The wingspan is about 50 mm. This species has a very narrow opaque margin around the wings, and a uniformly brown abdomen.-Subspecies:...

but abdominal segments five and six each have a small lateral red spot, or segment five has a complete red belt. The underside of the abdomen is yellow, greyish medially and laterally reddish. The forewing upperside has a marginal band.

Subspecies

• Cephonodes armatus armatus (Fiji)
• Cephonodes armatus marianna Rothschild & Jordan, 1903 (Mariana Islands)