Genus 2. TAPINOMA ^HNS.

Formica ^HNS, pt., Latr. Hist. Nat. Fourm. 182 (1802).

Tapinoma ^HNS, Foerst. Hym. Stud. 43 (1850).

Ocelli obliterated in the workers, present in the males and females; the scale of the petiole flattened, decumbent, usually received into an impressed fovea at the base of the abdomen; the thorax deeply impressed between the meso- and metathorax, the latter obliquely truncated; wings as in the second division of Formica ^HNS.