Green Sedge vs White-Stockinged Black Fly

Side-by-side species comparison

Attribute Green Sedge White-Stockinged Black Fly
Scientific Name Rhyacophila dorsalis Simulium vittatum
Order Trichoptera Diptera
Family Rhyacophilidae Simuliidae
Size 10-14 mm 2-5 mm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Blood Feeders
Regions Europe, Asia North America
Conservation Least Concern Least Concern

Green Sedge

A free-living caddisfly larva that does not build a case, instead roaming the streambed as an active predator. Adults have greenish wings.

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Did You Know?

Unlike most caddisflies, green sedge larvae are caseless predators that hunt like underwater wolves among the stream cobbles.

White-Stockinged Black Fly

A widespread black fly species complex with distinctive white-banded legs. Larvae colonize almost any flowing water from irrigation ditches to large rivers.

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Did You Know?

It is one of the most commonly encountered black fly species in laboratory research.