Ennomos subsignaria

Elm spanworm moth
	File:Ennomos subsignaria.jpg
	Adult
	Adults mating
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Geometridae
Genus:	Ennomos
Species:	E. subsignaria
Binomial name
	Ennomos subsignaria; (Hübner, 1823)
Synonyms
	Eudalimia subsignaria Hübner, 1823; Ennomos niveosericeatus (Harris, 1855);

Ennomos subsignaria, the elm spanworm moth, is a moth of the family Geometridae. It is found in North America from Texas (south) to Alberta (northwest) and east to the Atlantic coast.^[2] It is recorded infrequently in Great Britain through accidental importation in asparagus.^[3]

The wingspan is 35–40 mm. Adults are pure white except for yellow branches on the antennae. They are on wing from late May to August.^[4] one generation per year.

The larvae feed on elm, apple, birch, maple, and oak.