Atta didita Walker

Neut. Picea, pubescens, scitissime scabrosa, capite maximo quadrata scite striato bituberculata, scuta gibbosulo, scu-tello minimo, metathorace valde declivi, petioli nodo 2 ° globoso lato, abdomine brevi-elliptico, pedibus fulvis.

Worker major. Piceous, pubescent, very finely scabrous. Head quadrate, very large, twice the breadth of the thorax, finely striated longitudinally, with two protuberances above. Antennae reddish, subclavate. Scutum somewhat gibbous; scutellum very small. Metathorax very slanting. First node of the peduncle rather narrow, minutely quadridentate; second globose, much broader. Abdomen short-elliptical. Legs tawny. Length of the body 3 lines.

Worker minor?. Head much smaller. Thorax less developed. Second node of the peduncle narrower. Abdomen black, round. Legs short, stout. Length of the body 2 lines.

This is probably a distinct species.