Desmia funeralis

Definition

A species of crambid moth (Lepidoptera: Crambidae) commonly known as the grape leaffolder, whose larvae fold and bind grape leaves with silk to feed and pupate within. Native to North America, ranging from the southern United States through California and northward to the northeastern states and southeastern Canada.

Etymology

Latin funeralis meaning 'funereal' or 'of a funeral', likely referring to the somber dark coloration of the adult moth; Desmia from Greek desmos meaning 'bond' or 'chain', possibly alluding to larval silk-binding behavior.

Example

Vineyard managers monitor for Desmia funeralis larval damage in mid-summer, recognizing the characteristic leaf-folding behavior that distinguishes this pest from other grape-feeding Lepidoptera such as the grape berry moth (Paralobesia viteana).

Synonyms

• Grape leaffolder

Related Terms

• Crambidae
• Lepidoptera
• leafroller
• vine pest
• Integrated Pest Management
• larval shelter

Usage Notes

The common name 'grape leaffolder' refers specifically to the larval habit of folding leaf margins; the species is often confused with Desmia maculalis, a congener with similar appearance and biology. Adult identification requires examination of genitalia or molecular markers due to morphological similarity between species in this genus.