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As of July 2016, the International Union for Conservation of Nature (IUCN) lists 2875 data deficient arthropod species.[1] 30% of all evaluated arthropod species are listed as data deficient. The IUCN also lists 17 arthropod subspecies as data deficient.

2 extinct in the wild arthropod species (0.02%)393 critically endangered arthropod species (4.1%)626 endangered arthropod species (6.6%)1081 vulnerable arthropod species (11%)398 near threatened arthropod species (4.2%)4080 least concern arthropod species (43%)2890 data deficient arthropod species (31%)
Arthropod species (IUCN, 2016-2)
  • 9470 extant species have been evaluated
  • 6580 of those are fully assessed[lower-alpha 1]
  • 4478 are not threatened at present[lower-alpha 2]
  • 2100 to 4990 are threatened[lower-alpha 3]
  • 83 to 169 are extinct or extinct in the wild:
    • 81 extinct (EX) species[lower-alpha 4]
    • 2 extinct in the wild (EW)
    • 86 possibly extinct [CR(PE)]
    • 0 possibly extinct in the wild [CR(PEW)]

  1. excludes data deficient evaluations.
  2. NT, LR/cd, LC.
  3. Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
  4. Chart omits extinct (EX) species

No subpopulations of arthropods have been evaluated by the IUCN.

This is a complete list of data deficient arthropod species and subspecies as evaluated by the IUCN.


Arachnids



Branchiopoda



Millipedes



Maxillopoda


Maxillopoda includes barnacles, copepods and a number of related animals. There are 22 species in the class Maxillopoda assessed as data deficient.


Sessilia



Calanoida


There are 19 species in the order Calanoida assessed as data deficient.


Diaptomids


Temorids


Harpacticoida



Xiphosura



Malacostracans


Malacostraca includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others. There are 1130 malacostracan species and 17 malacostracan subspecies assessed as data deficient.


Isopods



Decapods


There are 1128 decapod species and 17 decapod subspecies assessed as data deficient.


Parastacids


Gecarcinucids


Atyids

Species

Subspecies


Cambarids


Potamonautids


Pseudothelphusids


Potamids


Palaemonids

Species

Subspecies


Trichodactylids


Spiny lobsters


Lobsters


Slipper lobsters


Reef lobsters


Other decapod species


Insects


There are 1702 insect species assessed as data deficient.


Blattodea



Orthoptera


There are 50 species in the order Orthoptera assessed as data deficient.


Acridids


Tettigoniids


Phaneropterids


Other Orthoptera species


Hymenoptera


There are 316 species in the order Hymenoptera assessed as data deficient.


Colletids


Melittids


Apids


Halictids


Andrenids


Megachilids


Mantises



Lepidoptera


Lepidoptera comprises moths and butterflies. There are 87 species in the order Lepidoptera assessed as data deficient.


Pyralids


Swallowtail butterflies


Lycaenids


Nymphalids


Skippers


Other Lepidoptera species


Beetles


There are 377 beetle species assessed as data deficient.


Geotrupids


Longhorn beetles


Click beetles


Erotylids


Scarabaeids


Other beetle species


Odonata


Odonata includes dragonflies and damselflies. There are 868 species in the order Odonata assessed as data deficient.


Platystictids


Chlorogomphids


Argiolestids


Chlorocyphids


Isostictids


Platycnemidids


Megapodagrionids


Gomphids


Cordulegastrids


Corduliids


Calopterygids


Coenagrionids


Euphaeids


Macromiids


Lestids


Aeshnids


Libellulids


Polythorids


Other Odonata species


See also



References


  1. "IUCN Red List version 2016.1". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 4 July 2016.



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