mandibles
mandibles with abrupt attenuation
mandibles with abrupt attenuation
The mandibles are very straight with an abrupt attenuation near insertion of preapical tooth. Used in Antkey to separate Strumigenys lanuginosa from Strumigenys godeffroyi and Strumigenys lewisi.
mandibles triangular
mandibles triangular
The mandible shape is roughly triangular, not linear. Used in Antkey to distinguish among many genera and species.
mandibles triangular
mandibles triangular
The mandibles are triangular. Used in Antkey to separate Strumigenys species.
mandibles tridentate
mandibles tridentate
The mandible somewhat linear and armed with three apical teeth. Used in Antkey to separate Amblyopone from Prionopelta.
mandibles tridentate
mandibles tridentate
mandibles tridentate
apical fork present
apical fork present
The teeth at the apex of the mandibles form a vertically arranged fork of two or three enlarged, frequently spiniform teeth. Used in Antkey to separate Odontomachus from Leptogenys.
basal angle present
basal angle present
The masticatory and basal margin of the mandible are separated by a distinct angle. Used in Antkey to separate Iridomyrmex from Linepithema and Technomyrmex.
mandibles lacking apical fork
mandibles lacking apical fork
mandibles edentate and lacking teeth at the apex of the mandibles that form a vertically arranged fork of two or three enlarged, frequently spiniform teeth. Used in Antkey to separate Leptogenys from Odontomachus
basal angle absent
basal angle absent
The separation of the basal and masticatory margins of the mandibles weakly defined with the dentition extending to the basal margin. Used in Antkey to separate Linepithema and Technomyrmex from Iridomyrmex.