Four-spotted Rove Beetle vs Common Moth Fly

Side-by-side species comparison

Attribute Four-spotted Rove Beetle Common Moth Fly
Scientific Name Drusilla canaliculata Psychoda alternata
Order Coleoptera Diptera
Family Staphylinidae Psychodidae
Size 3-4 mm 2-4 mm
Habitat Woodlands Woodlands
Diet Scavengers Detritivores
Regions Europe, Northern Asia Cosmopolitan
Conservation Least Concern Least Concern

Four-spotted Rove Beetle

A small, flattened aleocharine rove beetle with a distinctive channeled pronotum and brownish coloration. It is frequently found in and around ant nests where it scavenges on nest debris.

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Did You Know?

This beetle produces a defensive spray from abdominal glands that deters attacking ants, allowing it to live safely near ant colonies.

Common Moth Fly

A tiny grayish moth fly with broad, hairy wings giving it a distinctly moth-like appearance. Its wings are held flat over the body at rest, and it runs in short hops when disturbed.

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Did You Know?

Moth flies are important components of sewage treatment trickling filter beds where their larvae help break down waste.