Tan Spotted Sedge vs Eastern Weighted Casemaker

Side-by-side species comparison

Attribute Tan Spotted Sedge Eastern Weighted Casemaker
Scientific Name Hydropsyche instabilis Goera stylata
Order Trichoptera Trichoptera
Family Hydropsychidae Goeridae
Size 11-15 mm 8-12 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions Europe Europe
Conservation Least Concern Least Concern

Tan Spotted Sedge

A medium-sized caddisfly whose larvae construct net retreats in fast-flowing upland streams. Adults are tan with spotted wings.

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Did You Know?

Larvae aggressively defend their net territories from neighboring caddisflies.

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.

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Did You Know?

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