Adelomyrmex grandis

Nothing is known about the biology of .

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)

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia.

Castes
Known only from the worker caste.

Nomenclature

 * . Adelomyrmex grandis Fernández, 2003b: 18, figs. 34, 75 (w.) COLOMBIA.
 * Status as species: Longino, 2012: 19; Fernández & Serna, 2019: 803.

Worker
Measurements. Holotype (Paratype). HL 1.0 (0.98) HW 0.96 (0.90) SL 0.67 (0.63) EL 0.13 (0.11) WL 1.0 (0.94) GL 1.3 (1.23) TL 4.2 (3.90) CI 96 (90) SI 70 (72).

Worker diagnosis. Mandibles with 6 teeth decreasing in size from the apical teeth. Last flagellomeres more or less gradually decreasing in size, so there is not a conspicuous club of two segments. Eyes relatively big, with more than 30 facets. Hypostomal tooth very small. Promesonotum convex, metanotal groove distinct. Propodeum sloping with two short spines directed upward, outward and backward. Petiole high, campaniform with anterior side sloping and posterior side slightly concave. Postpetiole with posterior face concave. Dorsum of head and promesonotum longitudinally striated/rugulose. Propodeal dorsum irregularly rugulose, with longitudinal trend. Propodeal declivity smooth and shining interrupted with more or less curved transverse rugulae between propodeal spines. Sides of petiole and postpetiole irregularly rugulose. Anterior face of petiole smooth and shining. Posterior surface of petiole with strong transverse striation. Hairs yellowish, long and flexuous on the body, more short and appressed on antennae and legs. Body brown to dark brown. Some long rugulae on mandibles. Tip of clypeal plate, clypeal teeth and mandible teeth black.

Type Material
Holotype worker: COLOMBIA, Nariño, Barbacoas, vereda Berlín, El Diviso, 520m, 22.viii.94, F. Escobar leg. No.294. Deposited in. Paratypes: 2 w, same data as holotype, deposited in,.

References based on Global Ant Biodiversity Informatics

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