Cascades Stonefly vs Tepui Firefly

Side-by-side species comparison

Attribute Cascades Stonefly Tepui Firefly
Scientific Name Doroneuria theodora Photinus tepui
Order Plecoptera Coleoptera
Family Perlidae Lampyridae
Size 22-30 mm 10-15 mm
Habitat Rivers & Streams Mountains
Diet Predators Predators
Regions North America South America (Venezuela - tepui region, Guyana)
Conservation Least Concern Data Deficient

Cascades Stonefly

A large predatory stonefly endemic to Cascade Range streams. Nymphs inhabit cold boulder-strewn torrents at moderate elevations.

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Did You Know?

Adults drum their abdomens on streamside surfaces to communicate with potential mates.

Tepui Firefly

A bioluminescent beetle endemic to the isolated tepui tabletop mountains of Venezuela. It produces a distinctive greenish-yellow flash pattern used in mate attraction. The larvae are also luminous and prey on snails and other small invertebrates on the tepui summit.

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Did You Know?

It lives only on the ancient tabletop mountains of Venezuela, which have been isolated for millions of years, making it a living relic of evolutionary history.