Washburn's Rock Crawler vs Japanese Ice Crawler
Side-by-side species comparison
| Attribute | Washburn's Rock Crawler | Japanese Ice Crawler |
|---|---|---|
| Scientific Name | Grylloblatta washingtonensis | Galloisiana nipponensis |
| Order | Grylloblattodea | Grylloblattodea |
| Family | Grylloblattidae | Grylloblattidae |
| Size | 15-25 mm | 20-25 mm |
| Habitat | Caves | Mountains |
| Diet | Detritivores | Detritivores |
| Regions | Pacific Northwest, United States | Asia |
| Conservation | Near Threatened | Vulnerable |
Washburn's Rock Crawler
A pale, eyeless ice crawler found in the Cascade Range. It forages at night on snow surfaces in near-freezing temperatures.
Did You Know?
Their eggs can take up to five years to hatch in the cold conditions where they live.
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.