Horn-headed Rove Beetle vs Claassenia Stonefly
Side-by-side species comparison
| Attribute | Horn-headed Rove Beetle | Claassenia Stonefly |
|---|---|---|
| Scientific Name | Bledius tricornis | Claassenia sabulosa |
| Order | Coleoptera | Plecoptera |
| Family | Staphylinidae | Perlidae |
| Size | 3-5 mm | 25-40 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Seed Feeders | Predators |
| Regions | Europe, Central Asia | Western North America |
| Conservation | Least Concern | Least Concern |
Horn-headed Rove Beetle
A small rove beetle in which males bear three horn-like projections on the head, used in combat for burrow ownership. It is a specialist of sandy riparian habitats near rivers and lakes.
Did You Know?
Males with larger horns win more contests for burrow ownership, but hornless 'sneaker' males can also mate by entering burrows when the resident male is absent.
Claassenia Stonefly
A large predatory stonefly with a mottled yellow and brown pattern. The nymphs are active nocturnal hunters that roam the stream bed seeking prey.
Did You Know?
Nymphs often crawl out of the water at night to hunt, making them vulnerable to bats and spiders.