Hyles euphorbiae, the spurge hawk-moth, is a European moth of the family Sphingidae. It has been found in Pontresina, Switzerland. This hawk moth is used as an agent of biological pest control against the noxious weed leafy spurge, but usually only in conjunction with other agents. The larvae consume the leaves and bracts of the plant. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.

Caterpillars are the larval stage of members of the order Lepidoptera.