Why do flies bite before it rains?

Question

Why do flies bite before it rains?

Answer 1

I was told that flies don't bite it's nats that bite. Plus, flies love the rain. It their natrural source of food.

Answer 2

So that they don't get wet.

Answer 3

This is how they lay their egg...maggots...rain makes decay and pools of water...both essential for the young to survive. tagger