Key to Vietnamese Dorylinae Genera

This key is based on: Eguchi, K., Bui, T.V. and Yamane, S. 2014. Generic Synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part II - Cerapachyinae, Aenictinae, Dorylinae, Leptanillinae, Amblyoponinae, Ponerinae, Ectatomminae and Ponerinae. Zootaxa. 3860:1–46.

The key includes Sphinctomyrmex, which is known from Thailand (Jaitrong Weeyawat, pers. comm.), Myanmar and India, but not yet from Vietnam.

This key was published as a key to Cerapachyinae genera. All the genera from this subfamily have since been moved to the subfamily Dorylinae. This key is missing two genera, Aenictus and Dorylus. At the time of publication the Dorylinae and Aenictinae were represented by one genus from their respective subfamilies. The latter subfamily is now too considered to be part of the Dorylinae.

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 * Vietnam
 * Dorylinae

1

 * Abdomen without a strong girdling constriction between segments III and IV (Fig. 1). Cerapachys (part: C. sexspinus group)


 * Abdomen with a strong girdling constriction between segments III and IV (Fig. 2) . . . . . 2

2
return to couplet #1
 * Strong girdling constrictions present between abdominal segments III and IV, IV and V, V and VI (Fig. 76) . . . . . Sphinctomyrmex


 * Abdominal segments IV, V and VI without girdling constrictions separating them (Fig. 3) . . . . . 3

3
return to couplet #2
 * Frontal lobes relatively broadly separated from each other by median portion of clypeus (Fig. 77); antennal socket in full-face view partly concealed by frontal lobe; tibial spurs absent from middle legs (at most a setiform vestige may remain that cannot be distinguished by light microscopy from other setae at tibial apex) . . . . . Simopone


 * Frontal lobes very narrowly separated from each other by a longitudinal strip of median portion of clypeus (Fig. 4); antennal socket in full-face view almost completely exposed; one or two tibial spurs present on middle legs (Fig. 5) . . . . . Cerapachys