| abstract | The ptyctimous mites (Oribatida) were represented in Colombia by only 11 known species prior to this work. In this paper, 16 ptyctimous mites species from seven genera and four families are identified, including one newly recorded family (Mesoplophoridae) from Colombia, four newly recorded genera, 13 newly recorded species, and one new species, Notophthiracarus colombianus sp. nov.. Detailed description and illustration of the new species are given, and Atropacarus (Hoplophorella) andrei (Balogh, 1958) is redescribed and treated as a valid species. |