Lasius brunneus are little brown garden ants that are not thought of as "having castes" ... most ant guides will describe all their workers as "all the same size."
However, these photos from antiwiki show a size difference in workers of a mature colony vs. nanitic workers. The nanitic workers are small since their nutrition must come in its entirety from the body of the queen!
Do you have enough mass in your body to make three or four people to help you out?
I don't!