On the Cryptocellus peckorum and Cryptocellus adisi groups, and description of a new species of Cryptocellus from Brazil (Arachnida: Ricinulei)

A new species of Ricinulei of the genus Cryptocellus Westwood 1874 is described from the Madeira-Purus Interfluve, Amazonas, Brazil. It shares a set of apomorphies with Cryptocellus peckorum Platnick & Shadab 1977 and Cryptocellus tarsilae Pinto-da-Rocha & Bonaldo 2007, with which it forms an assemblage of related species herein named the peckorum group. A second group of species, the Cryptocellus adisi group, is formed by the following species: Cryptocellus adisi Platnick 1988, Cryptocellus florezi Platnick & Garca 2008, and Cryptocellus lisbethae Gonzlez-Sponga 1998. © 2010 The American Arachnological Society