does anybody know what makes mantids hatch out from an ootheca? i guess it depends on species, like for example i have read that eremiaphila oothecas tend to hatch out in the mornings/soon after switching the lamps on. so for example i would assume they wait for a rise in temperature. i have just been wondering what kind of cues (if any) the nymphs take, and what makes them all hatch out when they do, usually for the most part at the same time (i know some do hatching in bursts, but what i mean is it is rare for just one to come out on its own a good while before the others right? so how do they all know?)