69. Myrmica castanea ^HNS. B.M.

Female. Length 3 lines.-Chestnut-red: head and thorax longitudinally striated, the scutellum smooth with a few punctures; the metathorax with two short spines, between which it is transversely striated; mandibles smooth and shining, with two stout teeth at the apex, and a few striae at their outer margins. Abdomen smooth and shining, with the apical margins of the segments dusky.

Hab. Brazil (Ega).