Sphinx adumbrata 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 Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

.

The thorax upperside, head upperside and palpi are grey. There is a narrow, black mesial line on the abdomen upperside with five elliptical, pale yellow spots. The abdomen underside is grey with a mesial black line. The forewing upperside is also grey, with a black basal patch on the hind margin and a black line in the discal cell. The hindwing upperside is grey with diffuse, dark, basal mesial and submarginal bands.