Key to Philippine Amblyoponinae

This worker key is based on: General, D. and G. Alpert. 2012. A synoptic review of the ant genera (Hymenoptera, Formicidae) of the Philippines. ZooKeys. 200:1-111 doi: 10.3897/zookeys.200.2447.

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1

• Frontal lobes large, extending forward beyond anterior clypeal margin; antennal funiculus flattened or compressed . . . . . Myopopone

• Frontal lobes never extending beyond anterior clypeal margin; antennal funiculus more or less circular in cross-section . . . . . 2

2

return to couplet #1

• Mandibles with only 3 teeth, with median tooth smallest; at full closure, little or no gap between mandibles and anterior clypeal margin . . . . . Prionopelta

• Mandibles with more than 3 teeth; at full closure, large gap between mandibles and anterior clypeal margin . . . . . 3

3

return to couplet #2

• Posterior margin of head strongly concave; apex of mandible blunt or rounded . . . . . Mystrium

• Posterior margin of head at most weakly concave; apex of mandible acute . . . . . Stigmatomma