Key to the males of Progonyleptoidellus

1. Femur IV with dorso-basal apophysis (DBA, see Kury & Pinto-da-Rocha, 1997: figs. 1, 2)........................... 2

- Femur IV without DBA (Figs. 2B, 4B).................................................................... 3

2. DBA (=anvil-shaped), merged into the base with the sub DBA; with two small tubercles on scutal area III............................................................................................ Progonyleptoidellus striatus

- DBA acuminate, simple, retrolaterally directed; with a pair of spines on scutal area III (see Kury & Pinto-da-Rocha, 1997: fig. 1)......................................................................... Progonyleptoidellus fuscopictus

3. Pedipalp coxa long (reaching the apical margin of trochanter IV); basitarsus I not swollen (like the distitarsus); femur III unarmed; tibia IV unarmed (Fig. 4).......................................... Progonyleptoidellus picinguaba sp. nov.

- Pedipalp coxa short (not reaching apical margin of trochanter IV); basitarsus I swollen; femur III with ventroapical acuminate tubercles; tibia IV ventrally armed........................................... Progonyleptoidellus bocaina sp. nov.