Spring Fishfly vs Western Fishfly

Side-by-side species comparison

Attribute Spring Fishfly Western Fishfly
Scientific Name Chauliodes rastricornis Neohermes filicornis
Order Megaloptera Megaloptera
Family Corydalidae Corydalidae
Size 25-35 mm 40-55 mm wingspan
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Predators
Regions North America Western North America
Conservation Least Concern Least Concern

Spring Fishfly

A medium-sized fishfly with pectinate antennae found in eastern North America. Adults are attracted to lights near rivers and streams during spring.

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Did You Know?

Spring fishflies can be distinguished from dobsonflies by their feathery, comb-like antennae and smaller body size.

Western Fishfly

A western North American fishfly with feathery antennae and brownish wings. Adults are attracted to lights near streams where their larvae develop.

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Did You Know?

Fishflies are distinguished from dobsonflies by their feathery antennae and lack of massive mandibles in males.