A symbol of sex. It shows that you have a desire and aversion to sex.
Explanation of dreaming about insects:
Dreaming of bugs is ominous, and life will be in trouble.
Dreaming of killing bugs indicates that you will get through the difficulties.
Adopting someone else's child is to get something that doesn't belong to you. It has life. Between heaven and earth, all life is equal, and you can't force other life to belong to yourself. Therefore, such a dream means disaster, and the dreamer will encounter unexpected troubles.
Dreaming of adopting a child-unexpected trouble.
I hope I can solve your problem.