crickets are nasty bugs. and superworms or any worms in a bedding can get grain mites if your container gets to damp/humid. i had that happen once and it sucked. i would say it was mites, but who knows what kind. i know that snake mites and lizard mites are totally different and do not affect eachother. if theres an insect mite it might not harm a lizard either. who knows. i learned one thing about crickets this year, they carry the most parasites ever and i do not keep/feed them to my animals anymore. strictly roaches and worms plus other stuff. and now after deworming and more fecals they are fine for now. if your getting crickets i would stay away from petco/petsmart. i have bought at pet supplies plus once and was suprised at how good they were there. but then again, i do not buy them anymore so it doesnt bother me.