| The Hawaiian Islands have allowed insects to evolve unique habits, because the islands are isolated and originally lacked predators, such as ants and wasps. Ambush carnivorous caterpillars (_Eupithecia_ spp.; Lepidoptera: Geometridae) provide a remarkable example of a feeding behaviour unique to the Hawaiian Islands. Their prey includes various arthropods species. _Eupithecia_ larvae even attack predatory arthropods such as parasitoids. However, it is unclear whether _Eupithecia_ can attack ants. Here, I examined whether _Eupithecia orichloris_ can attack the invasive ant _Pheidole megacephala_ under laboratory conditions. _Eupithecia orichloris_ could successfully attack the minor worker of _P. megacephala_. However, the major worker of _P. megacephala_... |
