Mosquitos

[Pulcinella]

Hmmm...

Far too pleasant a sound: isn't it more like tzzzz?
Ideally followed by 'SPLAT' and the hope that no blood is evident, as that would mean that it got you first!

[Serial_Apologist]

Far too pleasant a sound: isn't it more like tzzzz?
Ideally followed by 'SPLAT' and the hope that no blood is evident, as that would mean that it got you first!

[Dave2002]

Concise Oxford gives only mosquitoes, but Chambers, Collins, and Merriam-Webster all give both, with no suggestion of UK/US usage, which I thought might be the case.

I think we should ask for the thread title to have an extra e.