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Worker. Pale to dark brown, somewhat shining, with sparse pubescence. Erect hairs are present over head and alitrunk and more thickly distributed over gaster. Head about as long as broad; pronotum broad, about l'/i width of propodeum; gaster heartshaped, much broader than alitrunk; scale, nodal reduced. Third and fourth funiculus segments subequal, about twice as long as second segment. Scape over-reaching occiput by about 1/6 its length. Ocelli absent. Length: 1.0-2.0 mm.
Queen. As worker but with broad flat alitrunk. Length: 3.0-4.0 mm.
Male. Brownish black. Head broader than long; eyes prominent, set forward of midlength ofhead. Antennae 12 segmented with scape overreaching occiput by 1/5 its length, funiculus segments scarcely longer than broad. Length: 1.5-2.0 mm.
Distribution. Central and Eastern Europe.
Biology. This minute species lives in small isolated colonies nesting under flat stones usually with several queens.