Bothroponera soror variety ancilla (Emery), Mayr

Wheeler, W. M., 1922, The ants collected by the American Museum Congo Expedition., Bulletin of the American Museum of Natural History 45, pp. 39-269 : 74

Bothroponera soror variety ancilla (Emery)

A single worker from Isangi (Lang and Chapin) differs from the typical soror in its smaller size (less than 7 mm.). It differs from Emery's description of the variety ancilla , however, and agrees with the typical form in having a trace of the mesoepinotal suture.