Hey,
Hmmm, i would disagree on that, but to each its own. My opinion is that..... Pinhead crickets are somewhat bigger than fruit flies, and pinhead crickets are younger crickets and have the same additude as an older cricket, so if caught by a smaller mantis sp. and given the chance, the pinhead can and will turn and bite the mantis, i lost a very young nymph like that before.
Thanks
Eros