Abstract
Camincheyletus glaucomys, n. gen., n. sp., Acaropsellina sumwersi, n. sp., and Eucheyletia oregonensis, n. sp., are described from specimens collected from the nest of northern flying squirrels in Wallowa County, Oregon. Cheletopkyes indiacus, n. sp. is described from specimens collected from a carpenter bee in Kerala, India. A key to the species is provided for Acaropsellina summers, Cheletopkyes Oudemans, and Eucheyletia Baker. A redescription of Laeliocheyletia teretis Summers and Price is presented. A comparison of the leg setae of all available stages indicates changes during development.