Key to Myrmica of Vietnam

AntWiki: The Ants --- Online

This worker key is based on: Radchenko, A.G., Elmes, G.W. & Bui, T.V. 2006. Ants of the genus Myrmica from Vietnam, with a description of a new species. Myrmecologische Nachrichten 8: 35-44.

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1

  • Body extremely large, HL > 2.10 mm, AL > 3.30 mm. Posterior (rear) half of head dorsum with coarse reticulation, remainder parts of head with coarse longitudinal rugae. Alitrunk and waist with coarse reticulation, surface between reticules on waist densely punctated . . . . . Myrmica titanica
  • Body much smaller, HL < 1.60 mm, AL < 2.50 mm. Body with other combinations of type of sculpture <span style="background:#F5F5F5". . . . . 2

2

  • Head dorsum coarsely rugose and surface between rugae smooth, not punctated. . . . . . 3
  • Head dorsum rugose or rugulose and surface between rugae distinctly punctated . . . . . 4

3

  • Head dorsum with coarse sinuous longitudinal rugae, reticulation may be present, but only on the occiput. Petiole and postpetiole coarsely rugose and surfaces between the rugae smooth and shiny . . . . . Myrmica serica
Head of Myrmica serica worker
Profile of Myrmica serica worker
  • Frons with coarse sinuous longitudinal rugae and posterior (rear) third of head dorsum with coarse reticulation. Petiole and postpetiole coarsely rugose and reticulate and surface between rugae densely punctated . . . . . Myrmica angulata
Head of Myrmica angulata worker
Profile of Myrmica angulata worker

4

  • Head dorsum with fine, slightly sinuous longitudinal rugae, without reticulation, surface between rugae finely though obviously, superficially punctated, appearing more or less shiny. Petiole and postpetiole without rugae, only partly finely striated and finely punctated, appearing somewhat dull. Scape very long, SI1 > 1.23, SI2 > 1.45 . . . . . Myrmica schoedli
Head of Myrmica schoedli worker
Profile of Myrmica schoedli worker
  • Only frons with coarse longitudinal rugae, posterior (rear) part of head dorsum with coarse reticulation, surface between rugae densely punctated, appearing dull. Petiole and postpetiole with coarse rugae and densely punctated, appearing dull. Scape shorter, SI1 < 1.18, SI2 < 1.38. . . . . . Myrmica yamanei