I heard talk today of a survey of a (fly?) or other biting insect 
which is supposed to be rare, which occurs, sometimes in 
discomforting numbers, in the estuary of the Dee?

Anyone heard of what the insect is, and point to some text 
for a description?
2 people I know were bitten several times, although as far as 
I can tell the reactions were mild.

I had assumed it was a mosquito.
Miles