Two-spotted Jet Beetle vs Sweltsa Green Stonefly
Side-by-side species comparison
| Attribute | Two-spotted Jet Beetle | Sweltsa Green Stonefly |
|---|---|---|
| Scientific Name | Stenus bipunctatus | Sweltsa borealis |
| Order | Coleoptera | Plecoptera |
| Family | Staphylinidae | Chloroperlidae |
| Size | 4-6 mm | 6-9 mm |
| Habitat | Wetlands | Forests |
| 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.
Sweltsa Green Stonefly
A small northern green stonefly found in cold boreal and montane streams. Nymphs prey on early-instar chironomids and other tiny larvae.
Did You Know?
This species is one of the most cold-adapted stoneflies and can be active in near-freezing water.