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Ice Crawlers

Order Grylloblattodea

10 species

Rare wingless insects found in cold mountainous environments. They live on glaciers and snowfields at near-freezing temperatures.

Species in this Order

Grylloblattidae Vulnerable

Cascade Ice Crawler

Grylloblatta chirurgica

A North American ice crawler found in the Cascade Range of Washington and Oregon. It lives in volcan...

15-25 mm
Grylloblattidae Near Threatened

Cascade Rock Crawler

Grylloblatta sculleni

A rare, eyeless rock crawler found in lava tube caves in the Cascade Range. It is adapted to permane...

15-22 mm body length
Grylloblattidae Data Deficient

Chinese Rock Crawler

Galloisiana sinensis

A rare ice crawler found in mountainous regions of China. It is wingless and nocturnal, emerging onl...

15-25 mm
Grylloblattidae Vulnerable

Japanese Ice Crawler

Galloisiana nipponensis

A nocturnal wingless insect found at high elevations in Japan. One of the most primitive living inse...

20-25 mm
Grylloblattidae Endangered

Mount Halla Ice Crawler

Galloisiana koreana

A Korean ice crawler restricted to the high elevations of Mount Halla on Jeju Island. It is nocturna...

15-25 mm
Grylloblattidae Near Threatened

Northern Rock Crawler

Grylloblatta campodeiformis

A rare ice-dwelling insect that lives on glaciers and snowfields at near-freezing temperatures. Hand...

15-30 mm
Grylloblattidae Near Threatened

Rock Crawler

Grylloblatta bifratrilecta

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

15-25mm
Grylloblattidae Data Deficient

Siberian Ice Crawler

Grylloblattina djakonovi

A rare ice crawler found in the Russian Far East. It inhabits mossy rock fields and emerges at night...

18-28 mm
Grylloblattidae Data Deficient

Siberian Rock Crawler

Grylloblatta djakonovi

A rare rock crawler discovered in the mountains of Siberia. It inhabits deep rock crevices and is ac...

16-24 mm body length
Grylloblattidae Near Threatened

Washburn's Rock Crawler

Grylloblatta washingtonensis

A pale, eyeless ice crawler found in the Cascade Range. It forages at night on snow surfaces in near...

15-25 mm