Wikipedia
Proformica
Proformica is a genus of ants in the subfamily Formicinae. The genus is known from the Palearctic region, from Mongolia through Central Asia to Spain. Colonies are small, generally containing a few hundred individuals, with a single queen ( monogyne) or multiple ergatogyne queens. Unique in the tribe Formicini, some species have specialized workers (" honeypot ants") gorged with food; they function as living storage containers.