Little Olive Sedge vs Wood Cockroach

Side-by-side species comparison

Attribute Little Olive Sedge Wood Cockroach
Scientific Name Hydropsyche betteni Ectobius lapponicus
Order Trichoptera Blattodea
Family Hydropsychidae Ectobiidae
Size 10-14 mm 6-10 mm
Habitat Rivers & Streams Underground
Diet Detritivores Detritivores
Regions North America Europe
Conservation Least Concern Least Concern

Little Olive Sedge

A common North American net-spinning caddisfly tolerant of a range of water qualities. Larvae build intricate filtering nets in crevices between cobbles.

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Did You Know?

Silk nets are species-specific in mesh size, tuned to the preferred food particle diameter.

Wood Cockroach

A small outdoor cockroach that lives in European leaf litter and never enters buildings.

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Did You Know?

Unlike pest species it avoids human habitation and cannot survive indoors.