Rock Crawler vs Northern Rock Crawler

Side-by-side species comparison

Attribute Rock Crawler Northern Rock Crawler
Scientific Name Grylloblatta bifratrilecta Grylloblatta campodeiformis
Order Grylloblattodea Grylloblattodea
Family Grylloblattidae Grylloblattidae
Size 15-25mm 15-30 mm
Habitat Caves Indoors
Diet Scavengers Omnivores
Regions North America North America
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.

Northern Rock Crawler

A rare ice-dwelling insect that lives on glaciers and snowfields at near-freezing temperatures. Handling one with bare hands can overheat and kill it.

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Did You Know?

Rock crawlers are so cold-adapted that a human hand is hot enough to kill them — they prefer temperatures between 1-4C and die above 20C.