The eutypus group

Members of this group have the anterior half of the epigynum raised, a large atrium in the posterior half, sometimes partially or wholly divided by a septum; copulatory openings usually situated at middle of the atrium; copulatory ducts tube-shaped, sclerotized, usually directed anteriorly, typically diverging from the paramedian copulatory openings; bursae located anteriorly to copulatory ducts; primary spermathecae chillishaped (elongate, distally narrow), tubular, or conical, situated lateral to copulatory ducts. Phonotimpus vacas sp. nov., described with only male specimens, is assigned to this group by sharing with other members an acuminated dorsal tibial apophysis subequal or longer than the retrolateral tibial apophysis, distal border of palpal tibia deeply notched prolaterally, and apical tegular apophysis hook-shaped (absent in P. cielo sp. nov.) .

Composition. P. eutypus, P. arcitos sp. nov., P. boneti sp. nov., P. chipinque sp. nov., P. cielo sp. nov., P. cuauhtemoc sp. nov., P. elviejo sp. nov., P. escondida sp. nov., P. frio sp. nov., P. revilla sp. nov., P. tetrico sp. nov., P. vacas sp. nov. and P. valles sp. nov .

Distribution. San Luis Potosí, Tamaulipas, and Nuevo León.