Rusty Sedge vs American Cockroach

Side-by-side species comparison

Attribute Rusty Sedge American Cockroach
Scientific Name Hydropsyche saxonica Periplaneta americana
Order Trichoptera Blattodea
Family Hydropsychidae Blattidae
Size 10-13 mm 35-53 mm
Habitat Rivers & Streams Gardens
Diet Omnivores Omnivores
Regions Europe Worldwide
Conservation Least Concern Least Concern

Rusty Sedge

A net-spinning caddisfly of clean upland European streams sensitive to organic pollution. Larvae construct fine-meshed capture nets between stones.

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Did You Know?

Its presence is used as a biological indicator of excellent water quality in European river assessments.

American Cockroach

Despite its name, native to Africa. One of the largest common cockroaches. Can run at 5.4 km/h — proportionally, one of the fastest land insects. Can survive weeks without its head.

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Did You Know?

A cockroach can live for a week without its head — it breathes through spiracles on its body and only dies because it cannot drink water.