Rock Crawlers
Order Notoptera
The Rock Crawlers (Order Notoptera) includes 12 species across 1 families and 1 genera in our directory.
About Rock Crawlers
Notoptera (ice crawlers/grylloblattids) includes only ~34 described species, making it one of the rarest insect orders. They are sometimes called 'living fossils' - surviving in icy mountain habitats where most insects cannot.
Economic Impact
Ice crawlers have no economic impact. They are extremely rare and sensitive to temperature - they can die from the heat of a human hand. Several species are listed as endangered.
Ecological Role
Notoptera are restricted to cold environments near glaciers, ice caves, and high-altitude talus slopes. They are nocturnal scavengers that feed on dead insects frozen in snow and ice. Their extreme rarity makes them high conservation priorities.
Families in Notoptera (1)
Species in Notoptera (12)

Grylloblatta chandleri
Grylloblatta chandleri

Grylloblatta gurneyi
Grylloblatta gurneyi
Grylloblatta marmoreus
Grylloblatta marmoreus

Grylloblatta oregonensis
Grylloblatta oregonensis

Grylloblatta washoa
Grylloblatta washoa

Grylloblatta bifratrilecta
Grylloblatta bifratrilecta

Grylloblatta chintimini
Grylloblatta chintimini

Grylloblatta chirurgica
Grylloblatta chirurgica

Grylloblatta rothi
Grylloblatta rothi
Newberry Ice Crawler
Grylloblatta newberryensis

Northern Rock Crawler
Grylloblatta campodeiformis

Scudder's Rock Crawler
Grylloblatta scudderi