Aquatic Snail-killing Fly vs Conifer Rove Beetle

Side-by-side species comparison

Attribute Aquatic Snail-killing Fly Conifer Rove Beetle
Scientific Name Sepedon sphegea Quedius plagiatus
Order Diptera Coleoptera
Family Sciomyzidae Staphylinidae
Size 5-9 mm 8-12 mm
Habitat Wetlands Woodlands
Diet Predators Predators
Regions North America Northern Europe, Siberia, boreal forests
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.

Conifer Rove Beetle

A medium-sized, dark rove beetle strongly associated with coniferous bark and dead wood. It is an important predator of bark beetle larvae in boreal and montane forests.

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Did You Know?

Forestry studies have shown that this beetle can reduce bark beetle populations by up to 60 percent in naturally managed forests.