Key to leaf‐cutting genera

AntWiki: The Ants --- Online

This worker key is based on Cristiano, M.P., Cardoso, D.C., Sandoval‐Gómez, V.E., Simões‐Gomes, F.C. 2020. Amoimyrmex Cristiano, Cardoso, Sandoval, gen. nov. (Hymenoptera: Formicidae): a new genus of leaf‐cutting ants revealed by multilocus molecular phylogenetic and morphological analyses. Austral Entomology. 59:643–676. doi:10.1111/aen.12493

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Figure 9a-f. Acromyrmex, Amoimyrmex and Atta. Lateral view. Acromyrmex sp.: (a) promesonotum (arrows pointing the spines) and (b) gaster, with tubercles (arrow). Amoimyrmex sp.: (c) promesonotum (arrows pointing the spines) and (d) gaster. Atta sp.: (e) promesonotum (arrow pointing the spines) and (f) gaster. (g) Amoimyrmex bruchi, showing median pronotal spines. (h) Amoimyrmex striatus, showing median pronotal tubercles, rough irregular striae and acute posterior cephalic corners (dotted line). (i) Amoimyrmex silvestrii, showing unarmed anterior pronotum, parallel irregular striae and rounded posterior cephalic corners (dotted line). MPS, median pronotal spine; MPT, median pronotal tubercles; Pes, parallel irregular striae; Res, rough irregular striae. Cristiano, Cardoso and Sandoval 2020.
  • Dorsum of promesonotum with 3 to 4 pairs of spines, Figure 9 a, c, arrows . . . . . 2
  • Dorsum of promesonotum with 2 pairs of spines, Figure 9e, arrows. First tergum of gaster smooth, without tubercles, Figure 9f . . . . . Atta

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  • First tergum of gaster tuberculated, Figure 9b, arrow . . . . . Acromyrmex
  • First tergum of gaster without tubercles, Figure 9d . . . . . Amoimyrmex