August Thorn vs Eastern Tiger Swallowtail

Side-by-side species comparison

Attribute August Thorn Eastern Tiger Swallowtail
Scientific Name Ennomos quercinaria Papilio glaucus
Order Lepidoptera Lepidoptera
Family Geometridae Papilionidae
Size 32-38 mm wingspan 79-140 mm wingspan
Habitat Woodlands Rivers & Streams
Diet Herbivores Nectar Feeders
Regions Europe North America
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.

Eastern Tiger Swallowtail

A large yellow butterfly with bold black tiger stripes and blue and orange markings on the hindwing margins. Females can occur in a dark morph mimicking the toxic pipevine swallowtail.

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Did You Know?

The caterpillar has large false eyespots and can evert an orange forked gland called an osmeterium that emits a foul smell to deter predators.