Rock Crawler vs Cascade Ice Crawler

Side-by-side species comparison

Attribute Rock Crawler Cascade Ice Crawler
Scientific Name Grylloblatta bifratrilecta Grylloblatta chirurgica
Order Grylloblattodea Grylloblattodea
Family Grylloblattidae Grylloblattidae
Size 15-25mm 15-25 mm
Habitat Caves Caves
Diet Scavengers Omnivores
Regions North America North America
Conservation Near Threatened Vulnerable

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.

Cascade Ice Crawler

A North American ice crawler found in the Cascade Range of Washington and Oregon. It lives in volcanic talus slopes near permanent snowfields.

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Did You Know?

Their preferred body temperature is around 1°C, making them among the most cold-adapted insects on Earth.