Finger-net Caddisfly vs Great Grey Sedge

Side-by-side species comparison

Attribute Finger-net Caddisfly Great Grey Sedge
Scientific Name Philopotamus montanus Arctopsyche grandis
Order Trichoptera Trichoptera
Family Philopotamidae Hydropsychidae
Size 10-14 mm 20-30 mm
Habitat Rivers & Streams Mountains
Diet Omnivores Omnivores
Regions Europe North America
Conservation Least Concern Least Concern

Finger-net Caddisfly

A medium caddisfly with golden-brown wings. Larvae spin finger-shaped silken nets in fast-flowing water to capture ultrafine particles of organic matter.

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Did You Know?

Its silk nets have an incredibly fine mesh, filtering particles as small as one micrometer.

Great Grey Sedge

One of the largest net-spinning caddisflies in North America with a wingspan over 40 mm. Larvae build robust catch-nets in powerful mountain torrents.

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Did You Know?

Larvae are partially predatory, consuming small invertebrates trapped in their nets alongside organic debris.