Leviticus 11:21-25

21Yet these you may eat among all the 1winged insects that walk on all fours: those which have jointed legs above their feet with which to jump on the earth. 22These of them you may eat: the locust in its kinds, the devastating locust in its kinds, the cricket in its kinds, and the grasshopper in its kinds. 23But all other 2winged insects which are four-footed are detestable to you.

24‘By these, moreover, you will be made unclean; whoever touches their carcasses becomes unclean until evening, 25and 3whoever picks up any of their carcasses shall wash his clothes and be unclean until evening.