Dynastini, MacLeay, 1819

Gasca-Álvarez, Héctor & Amat-García, Germán, 2010, Synopsis and key to the genera of Dynastinae (Coleoptera, Scarabaeoidea, Scarabaeidae) of Colombia, ZooKeys 34 (34), pp. 153-192 : 162

Key to the genera of adult Dynastini of Colombia

1. Clypeus emarginate or with 2 spiniform teeth widely separated. Males with head horn large and slightly flattened, apex bifurcate. Pronotum in males with 2 acute horns, 1 at each anterior angle (Fig. 14). Females on head with simple or double tubercle; pronotum simply convex ......... Megasoma Kirby

– Clypeus truncate or with 2 adjacent teeth. Males with head horn large, with teeth on dorsal surface, apex acuminate or rounded. Pronotum in males with a central horn. Females with frontal tubercle, pronotum simply convex ..... 2

2. Mandibles with apex entire or weakly notched. Pronotum in males with horn directed upwards, apex acuminate or with erect and wide tubercle (Fig. 15). Pronotum in females usually strongly punctuate ..................... Golofa Hope

– Mandibles with 2 apical teeth. Pronotum in males with forward directed horn, apex acute (Fig. 16). Pronotum in females usually strongly rugose...... ...................................................................................... Dynastes MacLeay