Distancebetween the lower rim of the antennal socket and posterior clypeal border commonly 1/3 or greater the maximum diameter of the antennal socket. NOTE: this gap is not large but the socket does not nearly touch as is the case with Formica.

Downward-sloping (declivitous) face of the propodeum (epinotum) decidedly longer than the basal (anterior) face, both faces meeting so that the propodeal profile resembles a distinct upwards facing peak with a more or less rounded apex.

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