Key to species of Pseudotibiozus (males)

1. Diameter 4.4–4.8 mm. Apical proplical lobe (apl) almost semi-circular, projecting laterad, mesapically with short, triangular or rounded process (map); apical metaplical lobe (aml) rounded-triangular; antetorsal process (atp) hidden, projecting apicad parallel to main stem of telopodite before the latter curves laterad........................................ P. cerasopus

- Diameter 6.0– 6.6 mm. Apical proplical lobe (apl) projecting laterad, then curving mesapicad with same width until rounding off apically; apical metaplical lobe (aml) tongue- or egg-shaped; antetorsal process (atp) visible, projecting mesapicad....................................................................................... P. zophoribates sp. nov.