Mountain Prosimulium vs Japanese Ground Beetle
Side-by-side species comparison
| Attribute | Mountain Prosimulium | Japanese Ground Beetle |
|---|---|---|
| Scientific Name | Prosimulium mixtum | Carabus insulicola |
| Order | Diptera | Coleoptera |
| Family | Simuliidae | Carabidae |
| Size | 2-4 mm | 22-30 mm |
| Habitat | Mountains | Forests |
| Diet | Omnivores | Omnivores |
| Regions | North America | Japan |
| Conservation | Least Concern | Least Concern |
Mountain Prosimulium
An early-season black fly of cold mountain streams in North America. Larvae develop in small headwater streams during late winter and early spring.
Did You Know?
Adults emerge so early in spring that they are often the first biting flies encountered by hikers each year.
Japanese Ground Beetle
A large, dark beetle with coppery-bronze elytra found in Japanese mountain forests. It is flightless and shows considerable variation between island populations.
Did You Know?
Isolated populations on different Japanese islands have diverged into distinct colour forms, making them popular among collectors.