Key to the species of Smilax

1. Pronotum with metallic green-golden coloration (Figs. 3, 10); aedeagus with paramere having sensory spinules (Figs. 26, 28)............................................................................................ .. S. kuntzeni

- Pronotum with metallic dark blue-brown coloration (Figs. 9, 10–11); aedeagus without sensory spinules................. 2

2. Posterior-lateral margins of head straight (Figs. 1, 5), not rounded; pronotum explanate (Figs. 1, 9); overall body shape not robust; aedeagus with paramere straight (Fig. 24)................................................ S. deneinephyto

- Posterior-lateral margins of head rounded (Figs. 2, 4, 7–8); pronotum disc broadly and strongly concave (Figs. 2, 4, 11–12); overall body shape robust; aedeagus with paramere strongly to slightly concave (Figs. 29, 31)......................... 3

3. Head with reddish-brown coloration (Figs. 4, 7); anterolateral and lateral sides of pronotum reddish-brown (Figs. 4, 11); aedeagus with paramere strongly concave (Fig. 29)........................................................ S. lynchi