List of ARACHNIDA species in United States



This is a list of ARACHNIDA in United States according to the IUCN Red List.

This list was last updated 2019-09-14

 

This list contains only species that have been assessed for the IUCN Red List. It is therefore not representative of all the species in the country.

Species counts by country: Total | Amphibians | Birds | Fish | Mammals | Reptiles | Vascular Plants.

scientific_namecommon_nametaxonidcategory
Fissilicreagris imperialis Empire Cave Pseudoscorpion 8574 VU
Adelocosa anops No-eyed Big-eyed Wolf Spider 513 EN
Banksula melones Melones Cave Harvestman 2548 VU
Sosippus placidus Lake Placid Funnel Wolf Spider 20421 VU
Lycosa ericeticola Rosemary Wolf Spider 12438 DD
Brachypelma aureoceps Florida golden chestnut 66081466 DD
Meta dolloff Dolloff Cave Spider 13255 VU
Tartarocreagris texana Tooth Cave Pseudoscorpion 21497 DD
Cyclocosmia torreya Torreya Trap-door Spider 6008 DD
Neoleptoneta myopica Tooth Cave Spider 14529 DD
Pardosa diuturna Glacier Bay Wolf Spider 16219 VU

 

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Species are classified by the IUCN Red List into nine groups:
  • Extinct (EX) – beyond reasonable doubt that the species is no longer extant.
  • Extinct in the wild (EW) – survives only in captivity, cultivation and/or outside native range, as presumed after exhaustive surveys.
  • Critically endangered (CR) – in a particularly and extremely critical state.
  • Endangered (EN) – very high risk of extinction in the wild, meets any of criteria A to E for Endangered.
  • Vulnerable (VU) – meets one of the 5 red list criteria and thus considered to be at high risk of unnatural (human-caused) extinction without further human intervention.
  • Near threatened (NT) – close to being at high risk of extinction in the near future.
  • Least concern (LC) – unlikely to become extinct in the near future.
  • Data deficient (DD)
  • Not evaluated (NE)