File:Longino 2007 Azteca fig 1.jpg

Figure 1. Characters for Azteca queens and workers. A, B. Head measurements. C. Petiole terminology. D. Petiole on which sternal lobe has concave posterior border (typical of A. nigra, A. gnava). E. Petiole on which posterior sternal lobe is convex, curving evenly to tergosternal suture (common ground plan). F. Mandible with small, sparse piligerous puncta. G. Mandible with even covering of coarse piligerous puncta.

[[Media:Longino J 2007.pdf|Longino, J.T. 2007. A taxonomic review of the genus Azteca in Costa Rica and a global revision of the aurita group. Zootaxa. 1491:1-63. PDF]]