Bolas Spider Moth Mimic vs Evergreen Bagworm Moth

Side-by-side species comparison

Attribute Bolas Spider Moth Mimic Evergreen Bagworm Moth
Scientific Name Celaenia excavata Thyridopteryx ephemeraeformis
Order Lepidoptera Lepidoptera
Family Noctuidae Psychidae
Size 30-40 mm wingspan Males 25 mm wingspan; females wingless and legless
Habitat Underground Gardens
Diet Nectar Feeders Herbivores
Regions Oceania Eastern North America
Conservation Least Concern Least Concern

Bolas Spider Moth Mimic

An Australian moth whose eggs are so tough they resemble seeds and can survive passage through a bird digestive tract — potentially allowing bird-mediated dispersal over long distances.

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Did You Know?

The eggs of this moth are so hard-shelled they can survive being eaten by a bird and pass through its digestive system intact — a unique form of insect dispersal.

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.