Key to Vietnamese Leptanillinae Genera

This key is based on Eguchi et al. (2014), with taxonomic updates provided by Griebenow (2024). It was originally modified from Borowiec et al. (2011) and Xu (2012).

Opamyrma is included in the Key to Vietnamese Amblyoponinae Genera. This genus was moved from the Amblyoponinae to Leptanillinae after this key was published.

This key has been superseded by Keys to Leptanillinae (but it has been updated to reflect the current taxonomy of the subfamily, with the exception of the inclusion of Opamyrma).

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• Mandible with 3–5 teeth (Fig. 6); metanotal groove vestigial to absent; bulla of metapleural gland rounded, located behind level of propodeal spiracle; median portion of clypeus never sharply marginate posteriorly and laterally (Fig. 6) . . . . . Leptanilla

Eguchi et al 2014 Fig 6.

• Mandible with more than 5 peg-like or saw-like teeth (Fig. 7); metanotal groove conspicuous; bulla of metapleural gland elongate and narrow, running longitudinally below propodeal spiracle; median portion of clypeus sharply marginate posteriorly and laterally (white arrow in Fig. 7) . . . . . Protanilla

Eguchi et al 2014 Fig 7.

References

• 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.
• Griebenow, Z. 2024. Systematic revision of the ant subfamily Leptanillinae (Hymenoptera, Formicidae). ZooKeys 1189, 83–184 (doi:10.3897/zookeys.1189.107506).