Key to Amoimyrmex workers

This worker key is based on [[Media:Cristiano, M.P., Cardoso, D.C. et al. 2020. Amoimyrmex Cristiano, Cardoso, Sandoval, gen. nov. (10.1111@aen.12493).pdf|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.]]

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 * Pronotum with a pair of small median pronotal spines, best seen in frontal view (Figure 9g); Argentina and Bolivia . . . . . Amoimyrmex bruchi


 * Pronotum without a pair of small median pronotal spines (Figure 9i); projections as tubercles may be present, but never forming a spine, best seen in frontal view (Figure 9h) . . . . . 2

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 * Posterior cephalic corner acute to angular (Figure 9h, dotted lines); in full‐face view, integument covered by parallel irregular striae (Figure 9h); Brazil and Uruguay . . . . . Amoimyrmex striatus


 * Posterior cephalic corner rounded (Figure 9i, dotted lines); in full-face view, integument covered by rough irregular striae (Figure 9i); Argentina and Paraguay . . . . . Amoimyrmex silvestrii