Aquatic Snail-killing Fly vs Pedician Crane Fly

Side-by-side species comparison

Attribute Aquatic Snail-killing Fly Pedician Crane Fly
Scientific Name Sepedon sphegea Pedicia rivosa
Order Diptera Diptera
Family Sciomyzidae Pediciidae
Size 5-9 mm 18-25 mm body length
Habitat Wetlands Rivers & Streams
Diet Predators Herbivores
Regions North America Europe, Northern Asia
Conservation Least Concern Least Concern

Aquatic Snail-killing Fly

A slender marsh fly with a distinctly pointed abdomen and yellowish-brown coloring. Larvae are aquatic predators of freshwater snails, attacking them underwater.

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Did You Know?

A single larva may consume multiple snails during its development, making it an effective natural snail control agent.

Pedician Crane Fly

A large, mottled-winged crane fly whose predatory larvae hunt invertebrates in wet mud and stream margins. Adults are often found resting on vegetation near flowing water.

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Did You Know?

Unlike most crane fly larvae that eat decaying matter, its larvae are voracious predators that ambush worms and insect larvae in mud.