Two-spotted Jet Beetle vs Western Stone
Side-by-side species comparison
| Attribute | Two-spotted Jet Beetle | Western Stone |
|---|---|---|
| Scientific Name | Stenus bipunctatus | Doroneuria baumanni |
| Order | Coleoptera | Plecoptera |
| Family | Staphylinidae | Perlidae |
| Size | 4-6 mm | 25-35 mm |
| Habitat | Wetlands | Mountains |
| Diet | Predators | Predators |
| Regions | Europe, Asia | North America |
| Conservation | Least Concern | Least Concern |
Two-spotted Jet Beetle
A small black rove beetle with two distinctive reddish spots on its elytra and greatly enlarged compound eyes. It is an ambush predator that strikes with incredible speed using its projectile mouthparts.
Did You Know?
Its labium can extend to nearly the length of its body in just 3 milliseconds, making it one of the fastest predatory strikes in the insect world.
Western Stone
A large predatory stonefly of Pacific Northwest mountain streams. Nymphs have distinctive patterned heads and powerful mandibles.
Did You Know?
Nymphs take up to three years to complete development in cold mountain streams.