Key to Anochetus of the Malagasy Region

This worker key is based on: Fisher, B. L. and M. A. Smith. 2008. A Revision of Malagasy Species of Anochetus Mayr and Odontomachus Latreille (Hymenoptera: Formicidae). [http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0001787 PloS one. 3:e1787].

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 * Anochetus
 * Ants of Madagascar

1

 * Inner mandibular blade without preapical teeth and denticles (Figs 3a, 4a) . . . . . 2


 * Inner mandibular blade with at least four preapical teeth and denticles . . . . . 4

2

 * Worker compound eye large, .0.15 mm long. In full face view, antennal scape extends beyond posterior margins of occipital lobe. Dorsal surface of head and mesosoma with or without numerous short setae . . . . . 3


 * Worker compound eyes small, ,0.15 mm long. In full face view, antennal scape usually fail to reach, and never surpass, posterior margin of occipital lobe. Dorsal surface of head with numerous short setae . . . . . Anochetus grandidieri

3

 * Dorsal surface of head and mesosoma without numerous short setae. Pronotal dorsum glassy smooth . . . . . Anochetus madagascarensis


 * Dorsal surface of head and mesosoma with numerous short setae. Pronotal dorsum with punctures anteriorly and longitudinal ridges posteriorly (Aldabra) . . . . . Anochetus pattersoni

4

 * Petiolar node as seen from front or rear with apical margin deeply concave, lateral corner forming long spine . . . . . Anochetus boltoni


 * Petiolar node as seen from front or rear with apical margin rounded, or slightly flattened, the lateral corner without spine . . . . . Anochetus goodmani