Summer Fishfly vs Striped Alder Sawfly

Side-by-side species comparison

Attribute Summer Fishfly Striped Alder Sawfly
Scientific Name Chauliodes pectinicornis Hemichroa crocea
Order Megaloptera Hymenoptera
Family Corydalidae Tenthredinidae
Size 25-40 mm 7-9 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Herbivores
Regions North America North America, Europe
Conservation Least Concern Least Concern

Summer Fishfly

A medium-sized fishfly emerging in summer with distinctive dark-veined wings and feathery antennae. Larvae develop in muddy stream bottoms.

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Did You Know?

Unlike dobsonfly larvae that prefer fast-flowing water, summer fishfly larvae thrive in slow muddy pools and swamps.

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.