A new epigean species of ricinuleid of the genus Pseudocellus (Arachnida: Ricinulei: Ricinoididae) from a tropical sub-deciduous forest in Oaxaca, Mexico

A new species of epigean ricinuleid of the genus Pseudocellus Platnick, 1980 is described from a tropical sub-deciduous forest in Oaxaca, Mexico. The species is described based on adult males and females, protonymphs, deutonymphs and tritonymphs: Pseudocellus valerdii sp. nov. This is the second species described from the state of Oaxaca. The total number of described species of Pseudocellus from Mexico increases to 20, having the highest species diversity of known ricinuleids worldwide.