My first time finding this species in Belgium :)
Nest tussen straatstenen
Under a stone at the edge of a forest
The pictures were taken by @ants_netherlands21
No mound in sight, but I didn't have the time to look for one
Lasius cf. psammophilius for now. I took a specimen, I will add close-up pictures in the future
The close-up photos were taken by @ants_netherlands21
The pictures were taken by @ants_netherlands21
The close-up photos were taken by @ants_netherlands21