Goat moths

Definition

A common name for heavy-bodied, cryptically colored moths of the family Cossidae, particularly species in the genus Cossus, whose common name derives from the strong goat-like odor emitted by larvae when disturbed. Adults are typically nocturnal with reduced mouthparts; larvae are wood-borers that tunnel in living or decaying hardwoods, often taking several years to mature.

Etymology

From the pungent, musky secretion released by caterpillals when handled, likened to the smell of goats.

Example

Cossus cossus, the goat moth widespread across Europe and Asia, produces larvae that excavate deep galleries in willow and poplar trunks, sometimes causing significant damage to orchard and ornamental trees.

Synonyms

• cossid moths
• wood-borer moths

Related Terms

• Cossidae
• wood-boring larvae
• cryptic coloration
• aposematic secretion
• Cossus cossus

Usage Notes

Primarily applied to Cossus species in European usage; North American cossids are more often called carpenter moths or simply cossids. The common name emphasizes larval defense chemistry rather than adult morphology. Not all Cossidae produce the characteristic odor, so 'goat moth' is sometimes restricted to Cossus specifically.