On Psorophora ciliata Wikipedia states:
Not only are these mosquitoes vicious and aggressive towards humans and other animals as adults but, P. ciliata larvae are known for preying on other mosquito species' larvae and even tadpoles. 
Now every mosquito is kinda aggressive by drinking your blood and being generally annoying. So what makes Psorophora ciliata especially aggressive? Does it scream expletives or what does it do?