Marsh Fritillary vs Narrow-necked Ant Beetle

Side-by-side species comparison

Attribute Marsh Fritillary Narrow-necked Ant Beetle
Scientific Name Euphydryas aurinia Dinarda dentata
Order Lepidoptera Coleoptera
Family Nymphalidae Staphylinidae
Size 38-50 mm wingspan 3-5 mm
Habitat Underground Woodlands
Diet Gall Makers Gall Makers
Regions Europe, temperate Asia, North Africa Europe, Northern Asia
Conservation Least Concern (but declining and protected under E Least Concern

Marsh Fritillary

A colourful butterfly with a complex mosaic of orange, cream, and brown markings across its wings. It is the most rapidly declining fritillary in Europe and is legally protected.

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Did You Know?

Its populations undergo dramatic boom-and-bust cycles driven by a parasitic wasp that specialises on its larvae.

Narrow-necked Ant Beetle

A flattened, reddish-brown aleocharine rove beetle that inhabits Formica ant nests as a tolerated guest. Its flattened body allows it to move easily through narrow ant nest galleries.

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Did You Know?

If attacked by an ant, this beetle raises its abdomen to present its appeasement glands, releasing chemicals that calm the aggressor.