Noterus Diving Beetle vs Little Black Caddis

Side-by-side species comparison

Attribute Noterus Diving Beetle Little Black Caddis
Scientific Name Noterus clavicornis Chimarra obscura
Order Coleoptera Trichoptera
Family Dytiscidae Philopotamidae
Size 4-5 mm 6-9 mm
Habitat Ponds & Lakes Rivers & Streams
Diet Omnivores Omnivores
Regions Europe, Western Asia Eastern North America
Conservation Least Concern Least Concern

Noterus Diving Beetle

A small, oval, yellowish-brown diving beetle with distinctively thickened antennae. It is widespread across Europe in still or slow-flowing waters.

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Did You Know?

Its swollen club-shaped antennae are unique among diving beetles and may enhance underwater sensory perception.

Little Black Caddis

A small, dark caddisfly that builds finger-shaped silk nets in stream crevices. It is widespread in warm-water streams across eastern North America.

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Did You Know?

Its silk capture tube is among the finest-meshed nets of any caddisfly, trapping microscopic food particles.