Alpine Stonefly vs Neotropical Robber Fly

Side-by-side species comparison

Attribute Alpine Stonefly Neotropical Robber Fly
Scientific Name Dictyogenus alpinum Ommatius orenoquensis
Order Plecoptera Diptera
Family Perlodidae Asilidae
Size 15-25 mm body length 10-15 mm
Habitat Mountains Forests
Diet Predators Predators
Regions Alps, Central European mountains South America
Conservation Least Concern Least Concern

Alpine Stonefly

A large, dark stonefly of cold alpine streams and rivers. Its nymphs are voracious predators of other aquatic invertebrates.

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Did You Know?

Adults have reduced mouthparts and do not feed during their short lifespan.

Neotropical Robber Fly

A slender tropical robber fly found in South American lowland forests. It hunts from leaf tips in the forest understory.

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Did You Know?

The genus Ommatius is one of the most species-rich robber fly genera in the tropics.