Rough-Skinned Diving Beetle vs Japanese Ice Crawler
Side-by-side species comparison
| Attribute | Rough-Skinned Diving Beetle | Japanese Ice Crawler |
|---|---|---|
| Scientific Name | Dytiscus lapponicus | Galloisiana nipponensis |
| Order | Coleoptera | Grylloblattodea |
| Family | Dytiscidae | Grylloblattidae |
| Size | 24-30 mm | 20-25 mm |
| Habitat | Mountains | Mountains |
| Diet | Omnivores | Detritivores |
| Regions | Northern Europe, Northern Asia | Asia |
| Conservation | Least Concern | Vulnerable |
Rough-Skinned Diving Beetle
A large diving beetle of northern and alpine regions across Europe and Asia. Both sexes have finely sculptured elytra, distinguishing it from the great diving beetle.
Did You Know?
It is one of the few large predatory beetles adapted to survive the extreme cold of subarctic lakes.
Japanese Ice Crawler
A nocturnal wingless insect found at high elevations in Japan. One of the most primitive living insects, often called a living fossil from the Permian period.
Did You Know?
Ice crawlers are considered living fossils — their order dates back to the Permian period, 250 million years ago, before the dinosaurs evolved.