List of endangered arthropods

As of July 2016, the International Union for Conservation of Nature (IUCN) lists 616 endangered arthropod species.[1] 6.5% of all evaluated arthropod species are listed as endangered. The IUCN also lists 27 arthropod subspecies as endangered.

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
Endangered (EN) species are considered to be facing a very high risk of extinction in the wild.

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, 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.[2] 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."[3]

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

Centipedes
  • Australobius abbreviatus
  • Australobius inflatitarsis
  • Australobius sechellarum
  • Mecistocephalus megalodon
  • Seychelles long-legged centipede (Seychellonema gerlachi)

Arachnids

There are 72 arachnid species assessed as endangered.

Harvestmen
  • Biantes albimanus
  • Biantes minimus
  • Gnomulus bedoharvengorum
  • Ibalonius bimaculatus
  • Ibalonius inscriptus
  • Ibalonius karschii
  • Mitraceras pulchra
  • Samoa sechellana

Spiders
  • Kauaʻi cave wolf spider (Adelocosa anops)
  • Anapistula seychellensis
  • Argyrodes chionus
  • Bardala labarda
  • Baviola luteosignata
  • Cenemus mikehilli
  • Cenemus silhouette
  • Clubiona mahensis
  • Clubiona nigrimaculosa
  • Cynapes wrighti
  • Dipoena hasra
  • Dipoena pristea
  • Euryopis helcra
  • Firmicus insularis
  • Gamasomorpha mornensis
  • Parambikulam large burrowing spider (Haploclastus kayi)
  • Hispo alboclypea
  • Hispo striolata
  • Ischnothyreus serpentinum
  • Larinia dasia
  • Lionneta mahensis
  • Lionneta orophila
  • Lionneta praslinensis
  • Lionneta savyi
  • Lionneta sechellensis
  • Lionneta silhouettei
  • Lionneta veli
  • Mariblemma pandani
  • Microbianor golovatchi
  • Nanume naneum
  • Orchestina justini
  • Orchestina sechellorum
  • Patri david
  • Phycosoma menustya
  • Beautiful parachute spider (Poecilotheria formosa)
  • Bengal ornamental (Poecilotheria miranda)
  • Reddish parachute spider (Poecilotheria rufilata)
  • Prasonica anarillea
  • Prasonicella marsa
  • Prida sechellensis
  • Pseudicius seychellensis
  • Rhomphaea recurvata
  • Sadies gibbosa
  • Sadies trifasciata
  • Salpesia soricina
  • Sason sechellanum
  • Scytodes pholcoides
  • Seycellesa braueri
  • Seychellia wiljoi
  • Stenoonops opisthornatus
  • Tetrablemma benoiti
  • Theridion cloxum
  • Theridion mehlum
  • Theridion nagorum
  • Theridion palanum
  • Tylorida mornensis

Other arachnid species

Branchiopoda

Millipedes
  • Badplaas black millipede (Doratogonus furculifer)
  • Strong black millipede (Doratogonus infragilis)
  • Minor black millipede (Doratogonus minor)
  • Ruby-legged black millipede (Doratogonus rubipodus)
  • Northern black millipede (Doratogonus septentrionalis)
  • Zululand black millipede (Doratogonus zuluensis)
  • Eucarlia hoffmani
  • Eucarlia urophora
  • Gonatotrichus silhouettensis
  • Pterozonium tropiphorum
  • Rhinotus densepilosus
  • Rhinotus vanmoli
  • Seychelles giant millipede (Sechelleptus seychellarum)
  • Seychelles pill-millipede (Sechelliosoma forcipatum)
  • Spiromanes braueri
  • Spiromanes sechellarum

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

  • Asellus aquaticus carniolicus
  • Asellus aquaticus cyclobranchialis
  • Monolistra racovitzai conopyge

Amphipods

Species

Subspecies

  • Niphargus elegans zagrebensis

Decapods

There are 154 decapod species and two decapod subspecies assessed as endangered.

Parastacids

Gecarcinucids

Atyids

Cambarids

Species

Subspecies

Potamonautids

Potamids
  • Doimon doichiangdao
  • Doimon doisutep
  • Geothelphusa levicervix
  • Yangmingshan crab (Geothelphusa yangminshan)
  • Hainanpotamon orientale
  • Ibanum pilimanus
  • Indochinamon bhumibol
  • Indochinamon villosum
  • Iomon nan
  • Johora punicea
  • Stoliczia chaseni

Palaemonids

Species

  • Arachnochium kulsiense
  • Calathaemon holthuisi
  • Macrobrachium hirtimanus
  • Macrobrachium minutum
  • Macrobrachium naso
  • Macrobrachium poeti
  • Balcones cave shrimp (Palaemonetes antrorum)
  • Palaemonetes suttkusi

Subspecies

  • Macrobrachium lamarrei lamarroides

Other decapod species

Insects

There are 343 insect species and 21 insect subspecies assessed as endangered.

Blattodea
  • Hololeptoblatta minor
  • Miriamrothschildia aldabrensis
  • Miriamrothschildia biplagiata
  • Miriamrothschildia mahensis
  • Gerlach's cockroach (Nocticola gerlachi)
  • Theganopteryx lunulata
  • Theganopteryx minuta

Orthoptera

There are 91 species and two subspecies in the order Orthoptera assessed as endangered.

Lentulids
  • Slender restio grasshopper (Betiscoides meridionalis)
  • Small restio grasshopper (Betiscoides parva)
  • Robust restio grasshopper (Betiscoides sjostedti)

Tetrigids

Euschmidtiids
  • Jagos monkey grasshopper (Chromomastax jagoi)
  • Ufipa monkey grasshopper (Euschmidtia fitzgeraldi)
  • Tanga monkey grasshopper (Euschmidtia tangana)

Mogoplistids
  • Arachnocephalus subsulcatus
  • Ectatoderus aldabrae
  • Ectatoderus nigriceps
  • Ectatoderus squamiger
  • Ornebius stenus
  • Ornebius syrticus

Pamphagids
  • Parnassos stone grasshopper (Glyphanus obtusus)
  • Groovy stone grasshopper (Kurtharzia sulcata)
  • Slender stone grasshopper (Orchamus gracilis)
  • Karpathos stone grasshopper (Orchamus kaltenbachi)
  • Chopard's stone grasshopper (Paranocarodes chopardi)
  • Eastern stone grasshopper (Prionotropis hystrix)
  • Willemse's stone grasshopper (Prionotropis willemsorum)
  • Purpurarian stone grasshopper (Purpuraria erna)
  • Lanzarote stick grasshopper (Purpuraria magna)

Crickets

Species

  • Seychelles palm cricket (Metioche bolivari)
  • Laricis tree cricket (Oecanthus laricis)
  • Orthoxiphus nigrifrons
  • Phaeogryllus fuscus
  • Scottiola salticiformis
  • Seychelles short-winged cricket (Seychellesia longicercata)
  • Seychellesia patellifera
  • Zarceus major

Subspecies

  • Phaloria insularis insularis

Acridids
  • Uluguru slender grasshopper (Acanthoxia aculeus)
  • Tanzanian coast grasshopper (Acteana alazonica)
  • Uluguru forest edge grasshopper (Afrophlaeoba euthynota)
  • Rubeho forest edge grasshopper (Afrophlaeoba longicornis)
  • Nguru forest edge grasshopper (Afrophlaeoba nguru)
  • Uluguru dusky grasshopper (Aresceutica morogorica)
  • Usambara dusky grasshopper (Aresceutica subnuda)
  • Ferdinand's grasshopper (Chorthippus ferdinandi)
  • Karaman grasshopper (Chorthippus relicticus)
  • Sicilian cross-backed grasshopper (Dociostaurus minutus)
  • Seychelles palm grasshopper (Enoplotettix gardineri)
  • Usambara noble grasshopper (Eupropacris pompalis)
  • Uvinza grasshopper (Hadrolecocatantops uvinza)
  • Lila Downs' friar grasshopper (Liladownsia fraile)
  • Sardinian match grasshopper (Ochrilidia nuragica)
  • Chelmos mountain grasshopper (Oropodisma chelmosi)
  • Karavica mountain grasshopper (Oropodisma karavica)
  • Parnassos mountain grasshopper (Oropodisma parnassica)
  • Tymphrestos mountain grasshopper (Oropodisma tymphrestosi)
  • Tymphi mountain grasshopper (Peripodisma tymphii)
  • Pternoscirtus aldabrae
  • Dinarian grasshopper (Rammeihippus dinaricus)
  • Gran Canaria sand grasshopper (Sphingonotus guanchus)
  • Knotty sand grasshopper (Sphingonotus nodulosus)
  • Club toothed grasshopper (Stenobothrus clavatus)
  • Zayante band-winged grasshopper (Trimerotropis infantilis)
  • Santa Monica Mountains grasshopper (Trimerotropis occidentaloides)
  • Lompoc grasshopper (Trimerotropis occulens)

Tettigoniids
  • Brown false shieldback (Aroegas fuscus)
  • Big-bellied glandular bush-cricket (Bradyporus macrogaster)
  • Cyprian red-headed bush-cricket (Bucephaloptera cypria)
  • Gran Canaria green bush-cricket (Calliphona alluaudi)
  • Gomera green bush-cricket (Calliphona gomerensis)
  • Palma green bush-cricket (Calliphona palmensis)
  • Lesotho meadow katydid (Conocephalus basutoanus)
  • Striped restio katydid (Conocephalus vaginalis)
  • Mount Ida marbled bush-cricket (Eupholidoptera astyla)
  • Spiny marbled bush-cricket (Eupholidoptera spinigera)
  • Kawanaphila pachomai
  • Chelmos Greek bush-cricket (Parnassiana chelmos)
  • Tymphi Greek bush-cricket (Parnassiana tymphiensis)
  • Tymphrestos Greek bush-cricket (Parnassiana tymphrestos)
  • Rentz's ambush katydid (Peringueyella rentzi)
  • Lucas' dark bush-cricket (Pholidoptera lucasi)
  • Psacadonotus insulanus
  • Lesina bush-cricket (Rhacocleis buchichii)
  • Seychelles predatory bush-cricket (Seselphisis visenda)
  • Jambila seedpod shieldback (Thoracistus jambila)
  • Seedpod shieldback (Thoracistus semeniphagus)
  • Inflated seedpod shieldback (Thoracistus thyraeus)
  • Throscodectes xederoides
  • Throscodectes xiphos
  • Adriatic marmored bush-cricket (Zeuneriana marmorata)

Phaneropterids

Species

  • Tree winter katydid (Brinckiella arboricola)
  • Cyprian plump bush-cricket (Isophya mavromoustakisi)
  • Epiros bright bush-cricket (Poecilimon gracilioides)
  • Paros bright bush-cricket (Poecilimon paros)
  • Pindos bright bush-cricket (Poecilimon pindos)
  • Soulion bright bush-cricket (Poecilimon soulion)

Subspecies

  • Isophya longicaudata longicaudata

Hymenoptera

Lepidoptera

Lepidoptera comprises moths and butterflies. There are 51 species in the order Lepidoptera assessed as endangered.

Swallowtail butterflies

Lycaenids

Nymphalids
  • Comoro friar (Amauris comorana)
  • Atlas grayling (Arethusana aksouali)
  • Biak dark crow (Euploea albicosta)
  • Murphy's crow (Euploea caespes)
  • Seychelles crow (Euploea mitra)
  • Biak threespot crow (Euploea tripunctata)
  • Karpathos grayling (Hipparchia christenseni)
  • Ponza grayling (Hipparchia sbordonii)
  • Hewitson's small tree-nymph (Ideopsis hewitsonii)
  • Moroccan wall brown (Lasiommata meadewaldoi)
  • Halicarnas brown (Maniola halicarnassus)
  • Kuekenthal's yellow tiger (Parantica kuekenthali)
  • Biak tiger (Parantica marcia)
  • Milagros' tiger (Parantica milagros)
  • Father Schoenig's chocolate (Parantica schoenigi)
  • Bonthain tiger (Parantica sulewattan)
  • Timor yellow tiger (Parantica timorica)
  • Madeiran speckled wood (Pararge xiphia)
  • Pseudochazara amymone
  • Pseudochazara euxina
  • Schneider's surprise (Tiradelphe schneideri)

Other Lepidoptera species

Beetles

There are 72 beetle species assessed as endangered.

Dytiscids

Stag beetles

Geotrupids
  • Ceratophyus martinezi
  • Ceratophyus rossii
  • Thorectes balearicus
  • Thorectes baraudi
  • Thorectes castillanus
  • Thorectes catalonicus
  • Thorectes chersinus
  • Thorectes coiffaiti
  • Thorectes distinctus
  • Thorectes hernandezi
  • Thorectes hispanus
  • Thorectes orocantabricus
  • Thorectes punctatissimus
  • Thorectes punctatolineatus
  • Thorectes puncticollis
  • Thorectes sardous
  • Thorectes variolipennis
  • Typhaeus hiostius
  • Typhaeus momus

Longhorn beetles
  • Anaglyptus luteofasciatus
  • Anaglyptus praecellens
  • Crotchiella brachyptera
  • Isotomus jarmilae
  • Pseudosphegesthes bergeri
  • Ropalopus ungaricus
  • Stenopterus creticus
  • Trichoferus bergeri
  • Pitt Island longhorn beetle (Xylotoles costatus)

Scarabaeids
  • Ahermodontus ambrosi
  • Ateuchus ambiguus
  • Canthonella gomezi
  • Yanbaru long-armed scarab beetle (Cheirotonus jambar)
  • Cryptocanthon altus
  • Cryptocanthon nebulinus
  • Cryptocanthon punctatus
  • Dichotomius eucranioides
  • Dichotomius schiffleri
  • Endroedyolus paradoxus
  • Heptaulacus gadetinus
  • Shadowy chafer (Mellissius adumbratus)
  • Nimbus anyerae
  • Onoreidium howdeni
  • Proagoderus uluguru
  • Sarophorus punctatus

Other beetle species

Odonata

Odonata includes dragonflies and damselflies. There are 97 species and 19 subspecies in the order Odonata assessed as endangered.

Platystictids

Platycnemidids

Species

Subspecies

  • Coeliccia flavicauda masakii
  • Coeliccia ryukyuensis amamii
  • Coeliccia ryukyuensis ryukyuensis

Megapodagrionids

Gomphids

Species

Subspecies

  • Asiagomphus amamiensis amamiensis
  • Asiagomphus amamiensis okinawanus
  • Stylogomphus ryukyuanus asatol
  • Stylogomphus ryukyuanus watanabei

Calopterygids

Species

  • Caliphaea angka
  • Glittering demoiselle (Calopteryx exul)
  • Clear-winged demoiselle (Calopteryx hyalina)
  • Syrian demoiselle (Calopteryx syriaca)
  • Clearwing (Sapho puella)
  • Cameroon sparklewing (Umma mesumbei)

Subspecies

  • Matrona basilaris japonica

Coenagrionids

Species

  • Acanthagrion williamsoni
  • Aciagrion fasciculare
  • Coenagriocnemis rufipes
  • Drepanoneura donnellyi
  • Mesamphiagrion demarmelsi
  • Mesamphiagrion gaudiimontanum
  • Mesamphiagrion nataliae
  • Mesamphiagrion santainense
  • Blue-and-orange threadtail (Microneura caligata)
  • Pseudagrion arabicum
  • Badplaas sprite (Pseudagrion inopinatum)
  • Telebasis flammeola

Subspecies

  • Pseudagrion torridum hulae

Aeshnids

Species

Subspecies

  • Planaeschna ishigakiana ishigakiana
  • Planaeschna ishigakiana nagaminei
  • Planaeschna risi sakishimana

Libellulids

Species

Subspecies

  • Leucorrhinia intermedia ijimai
  • Orthetrum poecilops miyajimaense
  • Urothemis thomasi thomasi

Other Odonata

Species

Subspecies

  • Chlorogomphus brunneus brunneus
  • Buchholz' cordulegaster (Cordulegaster helladica buchholzi)
  • Cordulegaster helladica helladica
  • Hemicordulia mindana nipponica

Other insect species
  • Mccarthy's plant-louse (Acizzia mccarthyi)
  • Anisolabis scotti
  • Giant torrent midge (Edwardsina gigantea)
  • Seychelles winged stick insect (Graeffea seychellensis)
  • Sugarfoot moth fly (Nemapalpus nearcticus)
  • Canary dwarf mantis (Pseudoyersinia canariensis)
  • Large blue Lake mayfly (Tasmanophlebi lacuscoerulei)
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gollark: Prove it.

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.
  2. "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
  3. "2001 Categories & Criteria (version 3.1)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
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