Spring Fishfly vs Appalachian Springfly

Side-by-side species comparison

Attribute Spring Fishfly Appalachian Springfly
Scientific Name Chauliodes rastricornis Remenus bilobatus
Order Megaloptera Plecoptera
Family Corydalidae Perlodidae
Size 25-35 mm 8-12 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Predators
Regions North America North America
Conservation Least Concern Vulnerable

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.

Appalachian Springfly

A rare springfly restricted to a few clean Appalachian headwater streams. Nymphs are predatory on small invertebrates among gravel substrates.

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Did You Know?

Its extremely limited range makes it one of the rarest stonefly species in North America.