Hooked Stonefly vs Robust Brown Rove Beetle
Side-by-side species comparison
| Attribute | Hooked Stonefly | Robust Brown Rove Beetle |
|---|---|---|
| Scientific Name | Agnetina capitata | Ocypus brunnipes |
| Order | Plecoptera | Coleoptera |
| Family | Perlidae | Staphylinidae |
| Size | 20-30 mm | 14-20 mm |
| Habitat | Rivers & Streams | Grasslands |
| Diet | Predators | Predators |
| Regions | Eastern North America | Europe, Western Asia |
| Conservation | Least Concern | Least Concern |
Hooked Stonefly
A large, patterned stonefly of eastern North American rivers with distinctive hooked anal gills. Nymphs are active nocturnal predators under cobbles.
Did You Know?
Its nymphs are nocturnal, hiding under rocks by day and actively hunting at night.
Robust Brown Rove Beetle
A large, dark rove beetle with characteristic brown legs, found commonly in grasslands and meadows. It is a powerful nocturnal predator that shelters under stones by day.
Did You Know?
Like its relative the devil's coach horse, this beetle emits a foul smell from its white-tipped abdominal glands when threatened.