Microhexura is a genus of tiny North American spiders that was first described by C. R. Crosby & S. C. Bishop in 1925.[1][2] It is the only genus in the family Microhexuridae.[3] As of July 2020, it contained only two species, both found in the United States: M. idahoana and M. montivaga.[1] M. montivaga occurs in the higher peaks of the Blue Ridge Mountains of North Carolina and Tennessee. M. idahoana occurs farther west, in the Cascades, the Blue Mountains, and the northern Rocky Mountains.[4]

Microhexura
Spruce-fir moss spider (Microhexura montivaga)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Clade: Avicularioidea
Family: Microhexuridae
Genus: Microhexura
Crosby & Bishop, 1925[1]
Type species
M. montivaga[1]
Crosby & Bishop, 1925
Species

M. montivaga is considered endangered. M. idahoana is widespread in old growth from Mount Rainier southward.[5]

References

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  1. ^ a b c d "Gen. Microhexura Crosby & Bishop, 1925". World Spider Catalog Version 21.0. Natural History Museum Bern. doi:10.24436/2. Retrieved 2020-07-15.
  2. ^ Crosby, C. R.; Bishop, S. C. (1925). "Two new spiders from the Blue Ridge Mountains of North Carolina". Entomological News. 36: 142–146.
  3. ^ "Family: Microhexuridae Bond, Opatova & Hedin, 2020". World Spider Catalog. Natural History Museum Bern. Retrieved 2020-07-15.
  4. ^ "Genus Microhexura". BugGuide. Retrieved 2019-06-01.
  5. ^ Crawford, Rod (2006). "Spider Collector's Journal (16th page: 2006)". Scarabs: The Bug Society. Retrieved 2019-06-01.
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