Devil's Coach Horse Beetle

Scientific Name: Ocypus olens

Order & Family: Order: Coleoptera, Family: Staphylinidae (Rove Beetles)

Size: 20–30 mm (0.8–1.2 inches) in length

Devil's Coach Horse Beetle

Natural Habitat

Found in gardens, parks, woodlands, and under stones or leaf litter; often seen in damp environments.

Diet & Feeding

Carnivorous and nocturnal predator; it eats invertebrates such as slugs, snails, spiders, caterpillars, and woodlice.

Behavior Patterns

Active primarily at night. When threatened, it raises its abdomen like a scorpion to deter predators and can emit a foul-smelling substance from its anal glands.

Risks & Benefits

Beneficial to gardens as a natural pest control for slugs and snails. Risks: It can deliver a painful (though non-venomous) bite with its strong mandibles if handled roughly.

Identified on: 5/18/2026