This is one of my queens, she is black and 6-7 mm long, I have caught the queen at the 18th june, I think is a T etramorium impurum queen, I know that the photo is not the best.
cheers
reine1.jpg
check out the M essors just a thought.
Thanks, but with first generation I have resolved it's Tetramorium Impurum, nice ant...
Tetraouvriers.jpg
WOW! Those are pretty cool ants!