Striped Alder Sawfly vs Little Black Caddis

Side-by-side species comparison

Attribute Striped Alder Sawfly Little Black Caddis
Scientific Name Hemichroa crocea Chimarra obscura
Order Hymenoptera Trichoptera
Family Tenthredinidae Philopotamidae
Size 7-9 mm 6-9 mm
Habitat Rivers & Streams Rivers & Streams
Diet Herbivores Omnivores
Regions North America, Europe Eastern North America
Conservation Least Concern Least Concern

Striped Alder Sawfly

A brightly colored sawfly with an orange body and black markings on the thorax. Larvae are pale yellowish-green with dark dorsal stripes and feed on alder and birch.

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Did You Know?

This species can reproduce both sexually and parthenogenetically, with unfertilized eggs developing into males.

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.