Eastern Weighted Casemaker vs Saddleback Caterpillar Moth

Side-by-side species comparison

Attribute Eastern Weighted Casemaker Saddleback Caterpillar Moth
Scientific Name Goera stylata Acharia stimulea
Order Trichoptera Lepidoptera
Family Goeridae Limacodidae
Size 8-12 mm 26-35 mm wingspan
Habitat Rivers & Streams Orchards
Diet Omnivores Omnivores
Regions Europe Eastern North America
Conservation Least Concern Least Concern

Eastern Weighted Casemaker

A caddisfly of clean European streams that builds mineral cases with large lateral ballast stones. Larvae scrape algae from rock surfaces in moderate current.

💡

Did You Know?

The lateral ballast stones are so precisely placed they appear to be glued on by hand.

Saddleback Caterpillar Moth

A dark brown moth best known for its extraordinary caterpillar, which is bright green with a brown saddle-shaped marking and venomous spines. The sting causes intense burning pain.

💡

Did You Know?

Its sting is among the most painful of any North American caterpillar and can cause nausea in sensitive individuals.