Harris's Diving Beetle vs Cascade Rock Crawler
Side-by-side species comparison
| Attribute | Harris's Diving Beetle | Cascade Rock Crawler |
|---|---|---|
| Scientific Name | Dytiscus harrisii | Grylloblatta sculleni |
| Order | Coleoptera | Grylloblattodea |
| Family | Dytiscidae | Grylloblattidae |
| Size | 33-40 mm | 15-22 mm body length |
| Habitat | Ponds & Lakes | Caves |
| Diet | Omnivores | Omnivores |
| Regions | North America | Oregon, Cascade Range |
| Conservation | Least Concern | Near Threatened |
Harris's Diving Beetle
A large North American diving beetle found in cold, clear lakes and bog ponds. It is one of the largest diving beetles on the continent.
Did You Know?
It can remain submerged for extended periods by trapping air under its elytra, which it uses like an external lung.
Cascade Rock Crawler
A rare, eyeless rock crawler found in lava tube caves in the Cascade Range. It is adapted to permanent darkness and cold temperatures.
Did You Know?
It was discovered in a lava tube cave and has greatly reduced eyes.