Grylloblattidae
| Grylloblattidae |
|
|---|---|
 |
|
| Galloisiana nipponensis | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Suborder: |
Grylloblattodea
|
| Family: |
Grylloblattidae
E. M. Walker, 1914
|
| Genera | |
|
Galloisiana |
|
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Grylloblattidae is a family of extremophile (psychrophile) and wingless insects that live in the cold on top of mountains. It belongs, along with Mantophasmatidae, to the order Notoptera.[2]
Overview
They are commonly called grylloblattids, but are also sometimes called ice crawlers or icebugs. Their appearance evidently puzzled the scientists who discovered them, E.M. Walker and T.B. Kurata; the first species named was Grylloblatta campodeiformis, which means "cricket-cockroach shaped like a Campodea" (a kind of two-pronged bristletail). Most are nocturnal and appear to feed on detritus. They have long antennae (23–45 segments) and long cerci (5–8 segments), but no wings. Their eyes are either missing or reduced and they have no ocelli (simple eyes).[3] Their closest living relatives are the recently discovered Mantophasmatodea.[4]
The family is placed in its own suborder, Grylloblattodea, and in its own former[2] order, Grylloblattaria. It contains 5 genera and 34 species.[5][6]
Habitat
Grylloblattodea are nocturnal extremophiles typically found in leaf litter and under stones in extremely cold environments, usually at higher elevations. They are known to inhabit cold temperate forests to glaciers and ice sheets. Their optimal living temperature is between 1-4 °C (33.8-39.2 °F). They can be killed at colder temperatures due to ice formation in the body, so when the temperature drops below their optimal range they survive by living under snow pack near the soil.[7]
Diet
They are omnivorous, but feed primarily on deceased arthropods. When arthropod carcasses are scarce, their diet relies heavily on plant material.[7]
References
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Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons
Data related to Grylloblattidae at Wikispecies- Video of a walking grylloblattid
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Arillo, A. & M. Engel (2006) Rock Crawlers in Baltic Amber (Notoptera: Mantophasmatodea). American Museum Novitates 3539:1-10
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- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
