Thunderfly in my iMac 27" Screen!! :-(

Hi,

All this hot weather in the UK has spawned a large number of Thunderflies! (Looks like this url) Unfortunately one of them has made its way into my iMac and has travelled and died behind my screen! So annoying! Not to mention it's only 6 months old! Does anyone know how I could remove this (I can see no way at the moment) and would it be covered under the apple care package?

Thanks,