Worker. HW 2.0 - 5.6; HL 3.1 - 5.1; PW 1.7 - 2.9. Red, gaster black; glossy; erect setae sparse, none on tibia, on scape, on propodeum nor under head, flat-lying on tibia. Major worker. Head sides convex; vertex straight; in profile feebly truncate; clypeus finely punctate, in profile concave, in front view anterior margin nearly straight, crenulate, projecting with 135° corners; propodeal dorsum straight, angle well rounded; node summit sharp, front and back convex. Minor worker. Head sides straight tapering to a collar behind; frontal carinae nearly parallel and narrow; anterior clypeal margin convex, crenulate, projecting; propodeal dorsum evenly convex; node summit blunt, front and back convex.