Leviticus 11:21-23
11:21 However, this you may eat from all the winged swarming things that walk on all fours, which have jointed legs to hop with on the land.
11:22 These you may eat from them: the locust of any kind, the bald locust of any kind, the cricket of any kind, the grasshopper of any kind.
11:23 But any other winged swarming thing that has four legs is detestable to you.
Leviticus 11:27-28
11:27 All that walk on their paws among all the creatures that walk on all fours are unclean to you. Anyone who touches their carcass will be unclean until the evening,
11:28 and the one who carries their carcass must wash his clothes and be unclean until the evening; they are unclean to you.