Adelomyrmex grandis

Identification
Adelomyrmex grandis and Adelomyrmex vaderi are two Colombian species that are similar in size but differ in a number of sculpture, shape, and color characters (Fernández, pers. com.). In A. grandis, the whole body is the same color, versus somewhat bicolored in A. vaderi (with lighter-colored gaster). The postpetiole of A. grandis is more typical, wider than long in dorsal view, and without a pronounced posterodorsal projection or carina in lateral view. In A. vaderi, the postpetiole is longer than wide in dorsal view, with a bluntly acute posterodorsal projection in lateral view. Also, the rugose sculpture on the face of mesosoma of A. grandis is more regular and less reticulate compared to A. vaderi. The two are geographically separate, with A. grandis being in the southwest of Colombia, on the western slope of the Cordillera Occidental, and A. vaderi in central Colombia on the eastern slope of the Cordillera Oriental. (Longino 2012)

Key to Adelomyrmex of the New World mainland

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia.

Nomenclature

 *  grandis. Adelomyrmex grandis Fernández, 2003b: 18, figs. 34, 75 (w.) COLOMBIA.

Additional References

 * Longino, J.T. 2012. A review of the ant genus Adelomyrmex Emery 1897 (Hymenoptera, Formicidae) in Central America. Zootaxa 3456, 1–35.