Or is it that the victims pest warning system is currently winning the biological arms race, in which case how are mosquitoes able to successfully reproduce? Or is it that mosquitoes have evolved such that their spawning numbers offset the difficulty they have biting?
Biology is hard.
That sounds completely made up. Why would they do that?
Dominance.
I definitely had that as vaguely factual, I thought heavy from blood they lightened the load before flying off and the hole was a too tempting target plus they enjoyed the symbolism. I asked ChatGPT and it said it was made up and was quite sneering about it so I suppose that is that.
You might be conflating with the housefly which will throw up on food it lands on because the enzymes break it down so they can suck it up.
I didn’t know mosquitoes enjoyed symbolism. Perhaps I can read them some Baudelaire next time