I noticed a week ago shiny trails in my trays of seedlings (like slug trails
but on a much smaller scale). Today on closer inspection I found tiny worm type
things. They are clear with a black line running down their boddies. It seems
there are loads of them living on my window sills! Can anyone tell me what they
are? Or perhaps point me towards a site with photos of wormy bugs?

Thankyou!
Lorraine