Rock Crawler vs Washburn's Rock Crawler

Side-by-side species comparison

Attribute Rock Crawler Washburn's Rock Crawler
Scientific Name Grylloblatta bifratrilecta Grylloblatta washingtonensis
Order Grylloblattodea Grylloblattodea
Family Grylloblattidae Grylloblattidae
Size 15-25mm 15-25 mm
Habitat Caves Caves
Diet Scavengers Detritivores
Regions North America Pacific Northwest, United States
Conservation Near Threatened Near Threatened

Rock Crawler

A pale wingless insect living on high-altitude ice and snowfields. It is active only at near-freezing temperatures.

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Did You Know?

Restricted to tiny patches of permanently cold habitat and acutely threatened by climate change warming its mountain homes.

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.

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Did You Know?

Their eggs can take up to five years to hatch in the cold conditions where they live.