Key to the species of Tenthecoris from Colombia

1. Antenna segment I entirely black. Corium black with blue metallic sheen (Fig. 14D)........................ T. exitiosus

1’. Antennal segment I and corium not as above................................................................ 2

2. Antennal segment II shorter or as long assegment I, and shorter than vertex width...................... T. venezuelensis

2’. Antennal segment II longer than segment I and vertex width................................................... 3

3. Corium orange with circular brown spot next to cuneus. Middle femur orange except at base (Fig. 14C)..... T. colombiensis

3’. Corium red with longitudinal black stripe on at least half of corium (Fig. 14B).............................. T. balloui