תּלמוד אויף דברים 14:19

[If one eats] a hornet, he gets six malkus [two for insects + three for land insects and one for flying insects] because of the verse (Deuteronomy 14,19) "that swarm in the air".

Rav Achai says, One who holds back his bodily functions transgresses the verses (Leviticus 20, 25) "Do not makes yourself abominable" Rav Bivi bar Abaye said, A person who drinks from a bloodletter's tube transgresses the prohibition of "do not make yourself abominable".