64. Myrmica barbata. Female. Length 5 1/2 lines.-Ferruginous: the head finely striated longitudinally, smooth and shining beneath; the cheeks with a long beard of pale ferruginous hairs; mandibles very stout, strongly striated, their inner edge with a row of acute teeth, and a longer acute one at the apex. Thorax ovate, pubescent, the metathorax armed with two stout spines, and transversely striated; the wings hyaline, with a yellowish tinge towards their base, the nervures ferruginous, the stigma fuscous; the legs covered with short pale pubescence. Abdomen: the first node of the petiole roughened, the second transverse and smooth, the petiole with a tooth at its base beneath; the abdomen ovate, and, as well as the nodes, thinly sprinkled with pale pubescence. Hab. Mexico. (Coll. F. Smith.)

Published as part of Smith, F., 1858, Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae., London :British Museum on page 130