Would appreciate an ID on this queen (?) please. Found in UK today (17 June) around 3pm, hot and humid day after storms yesterday, beside a large Lasius niger nest with nuptial flight earthworks and activity. Size 8-10mm.
Just want to check she's claustral (and indeed a queen). Think I can see wing scars in the photo. She ran like a queen and is substantially bigger than the workers around. Many thanks.