Aquatic Snail-killing Fly vs Azure Damselfly

Side-by-side species comparison

Attribute Aquatic Snail-killing Fly Azure Damselfly
Scientific Name Sepedon sphegea Coenagrion puella
Order Diptera Odonata
Family Sciomyzidae Coenagrionidae
Size 5-9 mm 33-36 mm wingspan
Habitat Wetlands Ponds & Lakes
Diet Predators Predators
Regions North America Europe
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.

Azure Damselfly

A delicate bright blue and black damselfly and one of the most abundant damselfly species in Europe. Males display a U-shaped mark on the second abdominal segment.

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Did You Know?

Mating pairs fly in tandem with the male gripping the female behind the head, forming a distinctive heart-shaped wheel during copulation.