| Family: | Scarabaeidae |
| Subfamily: | Dynastinae |
| Genus: | Megasoma |
| Species: | acteon |
| Subspecies: | janus |
| Date: | 26/05/1984 |
| Country: | Paraguay |
| Province: | Boquerón |
| Station: | Nueva Asuncion (Transchaco km 709) |
| Filename: | Scarabaeidae, Dynastinae/Megasoma acteon janus 32345.jpg |
| View: | Dorsal |
| Family: | Scarabaeidae |
| Subfamily: | Dynastinae |
| Genus: | Megasoma |
| Species: | acteon |
| Subspecies: | janus |
| Date: | 26/05/1984 |
| Country: | Paraguay |
| Province: | Boquerón |
| Station: | Nueva Asuncion (Transchaco km 709) |
| Filename: | Scarabaeidae, Dynastinae/Megasoma acteon janus 32346.jpg |
| View: | Dorsal |
| Family: | Scarabaeidae |
| Subfamily: | Dynastinae |
| Genus: | Megasoma |
| Species: | acteon |
| Subspecies: | janus |
| Date: | 28/05/1984 |
| Country: | Paraguay |
| Province: | Boquerón |
| Station: | Estancia La Madelón (Transchaco km 640) |
| Filename: | Scarabaeidae, Dynastinae/Megasoma acteon janus 32461.jpg |
| View: | Dorsal |
| Family: | Scarabaeidae |
| Subfamily: | Dynastinae |
| Genus: | Megasoma |
| Species: | acteon |
| Subspecies: | janus |
| Date: | 02/06/1984 |
| Country: | Paraguay |
| Province: | Boquerón |
| Station: | Cerro León Base |
| Filename: | Scarabaeidae, Dynastinae/Megasoma acteon janus 32462.jpg |
| View: | Dorsal |
| Family: | Scarabaeidae |
| Subfamily: | Dynastinae |
| Genus: | Megasoma |
| Species: | anubis |
| Subspecies: | / |
| Date: | 03/1982 |
| Country: | Brazil |
| Province: | Rio de Janeiro |
| Station: | Nova Friburgo |
| Filename: | Scarabaeidae, Dynastinae/Megasoma anubis 32331cz33.jpg |
| View: | Dorsal |
| Family: | Scarabaeidae |
| Subfamily: | Dynastinae |
| Genus: | Megasoma |
| Species: | anubis |
| Subspecies: | / |
| Date: | 03/1982 |
| Country: | Brazil |
| Province: | Rio de Janeiro |
| Station: | Nova Friburgo |
| Filename: | Scarabaeidae, Dynastinae/Megasoma anubis 32334cz36.jpg |
| View: | Lateral |