Key to males of Gonyleptellus

1. Laterals of dorsal scutum covered all along with large/medium tiles (Fig. 2A); femur IV arched or sinuous, armed with stout spiniform apophyses, especially retrolateral (Figs 3 A–D, 4A–D)............................................... 2

- Laterals of dorsal scutum at most with an outer fringe of small tiles (Fig. 18A); femur IV substraight, armed with feeble armature (Figs 19 A–D, 20)................................................................................. 3

2. Retrolateral apophysis of coxa IV boot-shaped (Fig. 3J, L); dorso-basal spine of femur IV very stout (Figs 3A, B, D, 4A, B, D)................................................................................. ... G. angeloi sp. nov.

- Retrolateral apophysis of coxa IV falciform (Figs 15J, L); dorso-basal spine of femur IV small (Figs 15A, B, 16A, B)...................................................................................... G. pustulatus comb. nov.

3. Carapace with a pair of bright oval flecks (Fig. 10A, E); retrolateral apophysis of coxa IV: vamp elongate falciform (Figs 11J, L)................................................................................. G. cancellatus reval.

- Carapace without oval flecks (Fig. 18A); retrolateral apophysis of coxa IV: vamp not as above (Fig. 19J, L)............. 4

4. Metatarsus IV unarmed (Fig. 19E); area V with 15 small tiles plus two medium-sized paramedian ones (Fig. 18A); retrolateral apophysis of coxa IV: heel square, vamp triangular (Figs 19 J, L)..................... G. pustulosus reval., comb. nov.

- Metatarsus IV provided with a retrolateral row of teeth all along its extension (Fig. 7E); area V with six small tiles plus two medium sized paramedian ones (Fig. 6A); retrolateral apophysis of coxa IV: heel rounded subtriangular, vamp curved lanceolate (Fig. 7J, L).............................................................................. G. bimaculatus