1 Male foretibiae with a row of spines, proximal spine larger. Wings of ejaculatory reservoir reduced (Figs. 10, 15)......................................................................................................................................................... 2

1´Male foretibiae unarmed. Wings of ejaculatory reservoir never extremely reduced (Figs. 20, 25, 30)......3

2 Distiflagellomere with a yellowish band; meso- and metafemora with a dark brown subapical band (Fig. 1) .............................................................................................................................. Paisana brachialis Stål

2´Distiflagellomere uniformly brown or with a diffuse yellowish band; distal quarter of meso- and metafemora darker, but without a subapical band (Fig. 2) ................................................. Paisana pampeana n. sp.

3´External corial margin serrated along anterior half. Pygophore: anterior margin of dorsal aperture slightly concave; inner projections without an anterior spine (Fig. 16) ................................... Paisana lydiae n. sp.

3 External corial margin smooth. Pygophore: anterior margin of dorsal aperture slightly concave or rounded; inner projections with an anterior spine (Figs. 21, 26).................................................................4

4 Femora mottled (Fig. 4). Pygophore: anterior margin of dorsal aperture rounded (Fig. 21)........................ ................................................................................................................................ Paisana maculata n. sp.

4´Femora uniformly colored (Fig. 5). Pygophore: anterior margin of dorsal aperture slightly concave (Fig. 26) ..................................................................................................................... Paisana saopaulensis n. sp.