Winter Stonefly vs Weighted Casemaker

Side-by-side species comparison

Attribute Winter Stonefly Weighted Casemaker
Scientific Name Taeniopteryx burksi Goera pilosa
Order Plecoptera Trichoptera
Family Taeniopterygidae Goeridae
Size 8-14 mm 9-13 mm
Habitat Rivers & Streams Rivers & Streams
Diet Detritivores Detritivores
Regions North America Europe
Conservation Least Concern Least Concern

Winter Stonefly

A dark-colored stonefly that emerges during winter months when few other aquatic insects are active. Adults can be found walking on snow near streams.

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Did You Know?

Winter stoneflies are among the very few insects that emerge as adults during the coldest months of the year.

Weighted Casemaker

A caddisfly that attaches heavy ballast stones to the sides of its case for stability. Larvae are found in fast-flowing stony streams.

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Did You Know?

The ballast stones can weigh several times more than the larva itself, preventing displacement by floods.