not quite sure on what kind, it's just the standard ones in the pet stores over here. it's for my pacman, it's the only thing that gets a good feeding response. i read somewhere that horned frogs eat locust in the wild but not entirely sure if that's true. the locust diet's just fine, i take care of my live food like i would any other living animal and have had no problems with my crickets reproduce for me often. it's just locust that seem to be dying off, so thought it could be that they could do with being warmer. don't think i'll use the heat mat then, might put it on top of my beardie cage, see if that will heat them up enough. thanks for your help