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Defenetly Lasius sp. probably lasius grandis but im no expert Thanks Alexander for your reply. I made some research and i think it's Lasius as you said. Altough there are some similarities, the workers have what it looks like stripes on their gaster, just like the queen. Also i haven't found inform...

Can anyone help me identify this queen?
I wanna make some research if they are Polygynous or not.

As it says on the title i got her in Pisa, Italy in July. She is about 1cm in length at the moment and the 3rd worker was born today

https://imgur.com/a/u3aZVmA