Why do mosquito bites seem to itch in a 24-hour rhythm?

I dont want to alarm you, but it is possible that you may have aquired a slight infection by some sort of parasite. Many insect borne infections work on the biological and behavioural cycle of their hosts and their sesceptibility to the vector, in this case the mosquito.

Many parasites, Malaria being one will only cause symptoms at various parts of the day, this directly corresponds with the peak in activity of the Anopheles mosquito which is the vector.

In order for the parasite to be transmitted, it has to be found in the bloodstream when the mosquitoes are feeding, so they begin to emerge in the blood stream around dusk, when the prime time for mosquitoes is occuring.

It may be nothing severe in your case, but if the cycle continues for more than a couple of days, you might want to go see a doctor.

Mosquito bites typically cause itchiness and redness due to the alien chemicals they inject into the blood stream, these are a mild anesthetic and an anticoagulant. Each person will rect differently, some people have a severe breakout, while others wont ever even know they were bitten. It is quite possible that your reaction is more periodic than constant.

I hope this helps, Im not trying to scare you.....

mosquito try to avoid direct sunlight,thatswhy they try to hide themselves from sunlight during daytime,they hide corners of room or in clothes,when day ends(7 oclock pm)they become hungry and comes out freely.i can say that this phenomenon is rhythem

mosqueto are bite before lays eggs becoz thair life cycle are short time.