Orizaba Silk Moth vs Evergreen Bagworm Moth

Side-by-side species comparison

Attribute Orizaba Silk Moth Evergreen Bagworm Moth
Scientific Name Rothschildia orizaba Thyridopteryx ephemeraeformis
Order Lepidoptera Lepidoptera
Family Saturniidae Psychidae
Size 110-145 mm Males 25 mm wingspan; females wingless and legless
Habitat Forests Gardens
Diet Omnivores Herbivores
Regions Mexico, Central America, southwestern United States Eastern North America
Conservation Least Concern Least Concern

Orizaba Silk Moth

A magnificent New World silk moth with large reddish-brown wings bearing conspicuous triangular clear windows. It was historically reared for its silk in parts of Mexico.

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Did You Know?

Indigenous peoples of Mexico once used the silk from Rothschildia orizaba cocoons to weave a coarse fabric, making it one of the few New World silk moths commercially utilized.

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.