As of July 2016, the
International Union for Conservation of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of nat ...
(IUCN) lists 616
endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, ...
species.
6.5% of all evaluated arthropod species are listed as endangered.
The IUCN also lists 27 arthropod subspecies as endangered.
No subpopulations of arthropods have been evaluated by the IUCN.
For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by ''critically endangered'' species, which meet the quantitative criteria for endangered species.
Critically endangered arthropods are listed separately. There are 1010 arthropod species which are endangered or critically endangered.
Additionally 2875 arthropod species (30% of those evaluated) are listed as ''
data deficient
A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status
The conservation status of a gro ...
'', meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of ''data deficient'' indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed."
This is a complete list of endangered arthropod species and subspecies as evaluated by the IUCN.
Centipedes
Centipedes (from New Latin , "hundred", and Latin , "foot") are predatory arthropods belonging to the class Chilopoda (Ancient Greek , ''kheilos'', lip, and New Latin suffix , "foot", describing the forcipules) of the subphylum Myriapoda, an a ...
Arachnids
Arachnida () is a class of joint-legged invertebrate animals (arthropods), in the subphylum Chelicerata. Arachnida includes, among others, spiders, scorpions, ticks, mites, pseudoscorpions, harvestmen, camel spiders, whip spiders and vine ...
There are 72 arachnid species assessed as endangered.
Harvestmen
The Opiliones (formerly Phalangida) are an order of arachnids colloquially known as harvestmen, harvesters, harvest spiders, or daddy longlegs. , over 6,650 species of harvestmen have been discovered worldwide, although the total number of ext ...
Spiders
Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and rank ...
Other arachnid species
Branchiopoda
Branchiopoda is a class of crustaceans. It comprises fairy shrimp, clam shrimp, Diplostraca (or Cladocera), Notostraca and the Devonian '' Lepidocaris''. They are mostly small, freshwater animals that feed on plankton and detritus.
Descriptio ...
Millipedes
Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a res ...
Malacostracans
Malacostraca includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others. There are 170 malacostracan species and six malacostracan subspecies assessed as endangered.
Isopods
Species
Subspecies
Amphipods
Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far descri ...
Species
Subspecies
*''
Niphargus elegans zagrebensis''
Decapods
The Decapoda or decapods (literally "ten-footed") are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crabs, lobsters, crayfish, shrimp and prawns. Most decapods are scavengers. The order is estim ...
There are 154 decapod species and two decapod subspecies assessed as endangered.
Parastacids
Gecarcinucids
Atyids
Cambarids
Species
Subspecies
*
Withlocoochee light-fleeing cave crayfish ''(Procambarus lucifugus lucifugus)''
Potamonautids
Potamids
Palaemonids
Species
Subspecies
*''
Macrobrachium lamarrei lamarroides''
Other decapod species
Insects
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of ...
There are 343 insect species and 21 insect subspecies assessed as endangered.
Blattodea
Blattodea is an order of insects that contains cockroaches and termites. Formerly, termites were considered a separate order, Isoptera, but genetic and molecular evidence suggests they evolved from within the cockroach lineage, cladistically ...
Orthoptera
Orthoptera () is an order of insects that comprises the grasshoppers, locusts, and crickets, including closely related insects, such as the bush crickets or katydids and wētā. The order is subdivided into two suborders: Caelifera – grass ...
There are 91 species and two subspecies in the order Orthoptera assessed as endangered.
Lentulids
Tetrigids
Euschmidtiids
Mogoplistids
Pamphagids
Crickets
Species
Subspecies
*''
Phaloria insularis insularis''
Acridids
Tettigoniids
Phaneropterids
Species
Subspecies
*''
Isophya longicaudata longicaudata''
Hymenoptera
Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, in addition to over 2,000 extinct ones. Many of the species are parasitic.
Females typi ...
Lepidoptera
Lepidoptera ( ) is an order (biology), order of insects that includes butterfly, butterflies and moths (both are called lepidopterans). About 180,000 species of the Lepidoptera are described, in 126 Family (biology), families and 46 Taxonomic r ...
Lepidoptera comprises moths and butterflies. There are 51 species in the order Lepidoptera assessed as endangered.
Swallowtail butterflies
Swallowtail butterflies are large, colorful butterflies in the family Papilionidae, and include over 550 species. Though the majority are tropical, members of the family inhabit every continent except Antarctica. The family includes the larges ...
Lycaenids
Nymphalids
Other Lepidoptera species
Beetles
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...
There are 72 beetle species assessed as endangered.
Dytiscids
Stag beetles
Geotrupids
Longhorn beetles
Scarabaeids
Other beetle species
Odonata
Odonata is an order of flying insects that includes the dragonflies and damselflies. Members of the group first appeared during the Triassic, though members of their total group, Odonatoptera, first appeared in Late Carboniferous.
The two commo ...
Odonata includes dragonflies and damselflies. There are 97 species and 19 subspecies in the order Odonata assessed as endangered.
Platystictids
Platycnemidids
Species
Subspecies
Megapodagrionids
Gomphids
Species
Subspecies
Calopterygids
Species
Subspecies
*''
Matrona basilaris japonica''
Coenagrionids
Species
Subspecies
*''
Pseudagrion torridum hulae''
Aeshnids
Species
Subspecies
Libellulids
Species
Subspecies
Other Odonata
Species
Subspecies
Other insect species
See also
*
Lists of IUCN Red List endangered species
*
List of least concern arthropods
*
List of near threatened arthropods
*
List of vulnerable arthropods
As of July 2016, the International Union for Conservation of Nature (IUCN) lists 1080 vulnerable arthropod species. 11% of all evaluated arthropod species are listed as vulnerable.
The IUCN also lists 29 arthropod subspecies as vulnerable.
N ...
*
List of critically endangered arthropods
*
List of recently extinct arthropods
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 81 extinct species, 86 possibly extinct species, and two extinct in the wild species of arthropod.
Centipedes
Possibly extinct species
*'' Mecistocephalus cy ...
*
List of data deficient arthropods
References
*Arthropods
Endangered arthropods
Endangered arthropods
Arthropod conservation
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