Epomis is a family of ground beetles(Carabidae). The hatchlings of this class are prominent for being committed predators. Epomis beetles as a whole are quite famous for their carnivore behavior and diet. Moreover, they are also quite ambitious predators when it comes to their prey as they are usually found hunting amphibians, frogs, e.t.c that are quite a few times bigger then their whole body

So it can be said that Amphibians and frogs that are usually seen as hunters of beetles fall under the prey category of this specific beetle when it comes down to it