Washburn's Rock Crawler vs Sand Cockroach
Side-by-side species comparison
| Attribute | Washburn's Rock Crawler | Sand Cockroach |
|---|---|---|
| Scientific Name | Grylloblatta washingtonensis | Arenivaga investigata |
| Order | Grylloblattodea | Blattodea |
| Family | Grylloblattidae | Corydiidae |
| Size | 15-25 mm | 15-25 mm |
| Habitat | Caves | Deserts & Drylands |
| Diet | Detritivores | Detritivores |
| Regions | Pacific Northwest, United States | North America |
| Conservation | Near Threatened | Least Concern |
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.
Sand Cockroach
A desert cockroach that extracts water vapor from moist sand through special mouthparts.
Did You Know?
It can absorb atmospheric water vapor at humidities as low as 83 percent.