mandibles
abrupt attenuation near preapical tooth
abrupt attenuation near preapical tooth 
mandibles very straight with an abrupt attenuation near insertion of preapical tooth (Strumigenys)
mandibles armed with apical fork
mandibles armed with apical fork
The teeth at the apex of the mandibles usually form a vertically arranged fork of two or three enlarged, frequently spiniform teeth.
mandibles armed with denticles
mandibles armed with denticles
The mandibles are linear and armed anteriorly with small denticles. Used in Antkey to separate Strumigenys species.
mandibles long and linear with 7 teeth
mandibles long and linear with 7 teeth
The mandible long and linear with seven teeth (one apical, one sub-apical, and five basal). Used in Antkey to separate Amblyopone zwaluwenburgi from Prionopelta species.
7 teeth, 2 are basal
7 teeth, 2 are basal
The mandible has seven total teeth and dents, including 2 basal teeth. Used in Antkey to separate Lasius neglectus from Lasius alienus, but it is not always reliable.
8 teeth, 2 are basal
8 teeth, 2 are basal
The mandible has eight total teeth and dents, including 2 basal teeth. Used in Antkey to separate Lasius alienus from Lasius neglectus but it is not always reliable.
mandibles with 7 teeth/denticles
mandibles with 7 teeth/denticles
The mandibles with seven teeth and denticles. Used in Antkey to separate Pachycondyla chinensis from Pachycondyla stigma and Hypoponera species.
mandibles lacking abrupt attenuation
mandibles lacking abrupt attenuation
The mandibles are evenly curved, lacking abrupt attenuation near insertion of preapical tooth. Used in Antkey to separate Strumigenys godeffroyi and Strumigenys lewisi from Strumigenys lanuginosa.
mandibles insterted laterally
mandibles insterted laterally
The mandibles inserted towards lateral corners of the of the anterior head margin. Used in Antkey to separate Leptogenys from Odontomachus.
mandibles inserted medially
mandibles inserted medially
The mandibles inserted towards the median anterior head margin. Used in Antkey to separate Odontomachus from Leptogenys.