Compost Rove Beetle vs Black-Headed Blister Beetle

Side-by-side species comparison

Attribute Compost Rove Beetle Black-Headed Blister Beetle
Scientific Name Oxytelus laqueatus Epicauta pennsylvanica
Order Coleoptera Coleoptera
Family Staphylinidae Meloidae
Size 3-4 mm 10-18 mm
Habitat Gardens Grasslands
Diet Predators Parasitoids
Regions Holarctic: Europe, Asia, North America North America
Conservation Least Concern Least Concern

Compost Rove Beetle

A small, broad oxytelline rove beetle with a distinctively sculptured pronotum bearing deep grooves. It is abundant in composting material and agricultural waste across the Holarctic region.

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Did You Know?

This beetle is so abundant in compost that a single shovelful can contain dozens of individuals, making it one of the most numerous insects in garden ecosystems.

Black-Headed Blister Beetle

An entirely black blister beetle common across eastern North America, often seen in large groups on goldenrod in autumn. Its larvae are parasitoids of grasshopper eggs.

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Did You Know?

Larvae go through hypermetamorphosis, changing dramatically in form across five different larval stages.