Evergreen Bagworm Moth vs Eastern Tiger Swallowtail

Side-by-side species comparison

Attribute Evergreen Bagworm Moth Eastern Tiger Swallowtail
Scientific Name Thyridopteryx ephemeraeformis Papilio glaucus
Order Lepidoptera Lepidoptera
Family Psychidae Papilionidae
Size Males 25 mm wingspan; females wingless and legless 79-140 mm wingspan
Habitat Gardens Rivers & Streams
Diet Herbivores Nectar Feeders
Regions Eastern North America North America
Conservation Least Concern Least Concern

Evergreen Bagworm Moth

A North American bagworm whose larvae construct spindle-shaped bags covered in bits of leaves and twigs. Heavy infestations can completely defoliate and kill ornamental evergreen trees.

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Did You Know?

The adult female is so reduced that she is essentially a bag of eggs with no wings, legs, eyes, or functional mouthparts.

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.