August Thorn vs Sweetheart Underwing

Side-by-side species comparison

Attribute August Thorn Sweetheart Underwing
Scientific Name Ennomos quercinaria Catocala amatrix
Order Lepidoptera Lepidoptera
Family Geometridae Erebidae
Size 32-38 mm wingspan 75-95 mm wingspan
Habitat Woodlands Woodlands
Diet Herbivores Sap Feeders
Regions Europe Eastern North America from southern Canada to the southern United States
Conservation Least Concern Least Concern

August Thorn

A thorn moth flying in late summer with warm yellow-brown wings. Rests with wings spread flat. Larvae feed on oak and other deciduous trees.

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Did You Know?

The angular wing shape and brown coloring give it a remarkable resemblance to a dry autumn leaf.

Sweetheart Underwing

A large underwing moth with mottled gray-brown forewings and rosy-pink hindwings crossed by black bands. It is one of the most attractive members of the underwing genus.

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Did You Know?

Its scientific name amatrix means 'sweetheart' in Latin, referring to the rosy-pink color of its hidden hindwings.