Giant Salmonfly vs Smokies Synchronous Firefly

Side-by-side species comparison

Attribute Giant Salmonfly Smokies Synchronous Firefly
Scientific Name Pteronarcys princeps Photinus macdermotti
Order Plecoptera Coleoptera
Family Pteronarcyidae Lampyridae
Size 35-50 mm 9-12 mm
Habitat Mountains Mountains
Diet Detritivores Omnivores
Regions North America North America
Conservation Least Concern Least Concern

Giant Salmonfly

A massive stonefly of western mountain rivers with a three-year nymphal life cycle. Nymphs feed on decomposing leaf material in cold streams.

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Did You Know?

Adults are among the largest flying insects in North America and can barely sustain flight due to their weight.

Smokies Synchronous Firefly

A firefly found in the central Appalachian region that produces slow, deliberate flashes. It is closely related to the famous synchronous fireflies.

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Did You Know?

DNA studies have revealed that many seemingly identical firefly species are actually distinct, hidden by their reliance on flash patterns rather than appearance.