Mosquitoes in my composter!

Hi, just wondering if anybody can help me. I've got mosquitoes breeding in my composter. It's a fully enclosed plastic one, so nice and warm for these unwanted residents! Does anybody have any ideas how to stop I can stop this? Many thanks :confused:

 

I thought mozzies bred in water, and only then, during the summer months.
I dont think they will do you any harm, especially once you've spread the compost.

 

Sure they are mozzies? and not little fruit flies which love the veg and fruit peelings??

 

There's also sciarid fly that likes to hop about in compost