title: A new Colombian species of Cryptocellus (Arachnida, Ricinulei), with notes on the taxonomy of the genus.
abstract: Cryptocellus sofiae sp. nov. is described based on males and females obtained from the easternmost part of Colombia, in Vichada Department. The new species is placed in the adisi species-group, based on the morphology of the male copulatory apparatus and the presence of polygonal (navicular or calyx-like) setae. With this addition, the group now comprises four species. A key for the identification of the members of this group is provided. Some taxonomic remarks about the adisi group and the genus Cryptocellus Westwood, 1874 are made.
authors.affiliation: División Aracnología, Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", Avenida Ángel Gallardo 470, CP: 1405DJR, C.A.B.A., Buenos Aires, Argentina.; Email: rbt@macn.gov.ar.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Botero-Trujillo
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D001097:Arachnida / Q000033:anatomy & histology / Q000145:classification*; D003105:Colombia; D017753:Ecosystem; D005260:Female; D008297:Male