Skimmer Stonefly vs Tepui Firefly

Side-by-side species comparison

Attribute Skimmer Stonefly Tepui Firefly
Scientific Name Acroneuria abnormis Photinus tepui
Order Plecoptera Coleoptera
Family Perlidae Lampyridae
Size 20-30 mm 10-15 mm
Habitat Rivers & Streams Mountains
Diet Predators Predators
Regions Eastern North America South America (Venezuela - tepui region, Guyana)
Conservation Least Concern Data Deficient

Skimmer Stonefly

A large predatory stonefly widespread in eastern North American rivers. Adults skim across the water surface during egg-laying flights.

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Did You Know?

Female skimmer stoneflies bounce across the water surface while releasing eggs, appearing to skip like a stone.

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.