11. Ocodoma affinis ^HNS, N. S.

Worker 1 / 8 th of an inch long; head nearly square, almost smooth, with only a few striae; eyes nearly medial, smallish; jaws triangu-lar, with two strong teeth at the external angle of the jaw, and two smaller at the internal angle; thorax very slightly grooved, with two curved spines posteriorly, first abdominal pedicle very narrow, long, conic posteriorly, not much raised; second rounded, of equal height, broader; head, legs and thorax rufous; abdomen dusky.

Warrior nearly 7 - 16 th of an inch long; head and jaws striated, eyes very minute, head notched anteriorly; antennae inverted in a deep groove; metathorax elevated; no palpi apparently. This Ant is very common in Malabar; is nearly allied to, but differs from, O. Diversa in the toothed jaws of the Warrior, & c. & c.