Surabaya's Mosquito vs. Bangkok's Mosquito

This picture shows the horrible animal, a real vampire that spread itches **overreacted**. Exactly mosquitoes do not bite, they only suck blood, and only female ones do.

What is the difference between those two?

In Surabaya the mosquitoes will 'sing' before they suck somebody's blood. We will be alerted and can prevent the incident if you wish.

In Bangkok, as what my friend told me, there is no sign but I already got bitten.
Sooo direct!