| | | Kind of type | Full locality |
| | | holotype of species Idiarthron cerosum Bowen-Jones, 2000 | Central America, Costa Rica: Osa Peninsula, Sirena Research Station, Corcorvado National Park |
| | | allotype of species Idiarthron cerosum Bowen-Jones, 2000 | Central America, Costa Rica: Osa Peninsula, Sirena Research Station, Corcorvado National Park |
| | | paratype of species Idiarthron cerosum Bowen-Jones, 2000 | Central America, Costa Rica: Osa Peninsula, Sirena Research Station, Corcorvado National Park |
| | | paratype of species Idiarthron cerosum Bowen-Jones, 2000 | Central America, Costa Rica: Osa Peninsula, Sirena Research Station, Corcorvado National Park |