Photos show five different individuals taken from the same nest. While these workers are not very hairy for rufibarbis, the nPn for most of them would be rather extreme for cunicularia, so I'm pretty sure it should be rufibarbis.
fighting with F. pratensis queen (https://www.inaturalist.org/observations/199134830)
collected by: A. Caballero
info: Ex: stem of Rubus rubus (Rosaceae) with ants and parasitoids
The photo shows the size comparison with Plagiolepis
Location: Europe > Portugal > Algarve
Date Photo Taken: August 30, 2017