Taxa included

Anonymous (1831b). A lobster-like insect attacking the leg of a house-fly. Magazine of Natural History 4: 283–284.

Taxon
Chelifer cancroides (Linnaeus, 1758) (Pseudoscorpiones: Cheliferidae) 283, (as Chélifer cancröìdes), Chelifer cancroides (Linnaeus)
Chernes cimicoides (Fabricius, 1793) (Pseudoscorpiones: Chernetidae) 284, (as Chélifer cimicöìdes), Chelifer cimicoides (Fabricius)