What is "psellocoptus"

Psellocoptus is a genus of running spiders (family Corinnidae, formerly Clubionidae) that is endemic to Venezuela. When Eugène Simon discovered the first species (P. flavostriatus), he described it as a "beautiful and large species from the forests of Venezuela which [is] found running rapidly on the trunks of trees". The two other species, found in 1971, are very similar to the first, while the whole genus is quite distinct from any other genus in general form and characteristics. It probably became isolated from the more widespread genera Myrmecium and Castianeira.