Key to Philippine Proceratiinae

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

• Fourth abdominal segment straight or slightly curved, so that apex of gaster is directed posteriorly . . . . . Probolomyrmex

• Fourth abdominal segment strongly curved, so that apex of gaster is directed anteriorly . . . . . 2

2

return to couplet #1

• Apical segment of antenna extremely large and bulbous; antennal sockets on shelf protruding over mandibles . . . . . Discothyrea

• Apical segment moderately enlarged, but not bulbous; antennal sockets not protruding over mandibles . . . . . Proceratium