The schulzefenai group

Members of this group have a single copulatory opening facing anteriorly and located on the anterior or middle part of epigynum; copulatory ducts short, directed posteriorly, heavily sclerotized, tightly touching one another, forming a copulatory duct chamber; elongated or tubular bursae arising posterolaterally to copulatory duct chamber, directed anteriorly, surrounding the copulatory duct chamber and opening; primary spermathecae directed posteriorly, elongated (rounded in P. ahuacatlan), contiguous, touching the posterior epigynal margin.

Composition. P. schulzefenai, P. ahuacatlan sp. nov. and P. puente sp. nov. .

Distribution. Ciudad de México, Estado de México, Guerrero, San Luis Potosí.