Body elongate and flattened in general shape. Antennal insertions exposed, without frontal lobes. Mesosoma depressed, promesonotal suture complete. Postpetiole well separated from gaster in worker, but not differentiated in female and male. Leptanilla lives in the soil.
Workers actively vibrate their antennae when ambulatory.
These ants have been said to be nomadic mass-foragers like the aenictines, dorylines and ecitonines, but little is known in detail concerning their field biology. His ants fed on geophilomorph centipedes. Ogata et al. Five described species and one undescribed are known from Japan. All are rare.