- Extinct in the wild (EW): 2 species
- Critically endangered (CR): 393 species
- Endangered (EN): 626 species
- Vulnerable (VU): 1,081 species
- Near threatened (NT, LR/cd): 398 species
- Least concern (LC): 4,080 species
- Data deficient (DD): 2,890 species
Arthropod species (IUCN, 2016-2)
- 9470 extant species have been evaluated
- 6580 of those are fully assessed [a]
- 4478 are not threatened at present [b]
- 2100 to 4990 are threatened [c]
- 83 to 169 are extinct or extinct in the wild:
- 81 extinct (EX) species [d]
- 2 extinct in the wild (EW)
- 86 possibly extinct [CR(PE)]
- 0 possibly extinct in the wild [CR(PEW)]
- ^ excludes data deficient evaluations.
- ^ NT, LR/cd, LC.
- ^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
- ^ Chart omits extinct (EX) species
