Adelomyrmex cristiani

The types were collected from Berlese samples.

Identification
Key to Adelomyrmex of the New World mainland

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia, Ecuador.

Nomenclature

 *  cristiani. Adelomyrmex cristiani Fernández, 2003b: 16, figs. 36, 75 (w.) COLOMBIA.

Longino (2012) - The holotype of A. cristiani came from a series of Berlese samples from the Tatamá elevational transect studied by van der Hammen et al. (van der Hammen & Ward 2005). I examined three additional workers provided by P. S. Ward. Two were from two additional sites on the Tatamá transect (TATA206 and TATA212, at 1540 m and 1950 m elevation, respectively), and one was from a wet forest site in Pichincha Province, Ecuador, at 1500 m (PSW11503.9). The specimens showed discordant character variation. The Ecuador and TAT212 specimens have similar mandibular dentition: there are three main apical teeth, two or three small denticles, and a broad triangular tooth that is near the basal tooth. Thus, these specimens exhibit the character of the Central American species Adelomyrmex dentivagans, Adelomyrmex mackayi, Adelomyrmex nortenyo, and Adelomyrmex quetzal. The mandibles on TAT206 are difficult to observe, but one partially open mandible appears to have a more typical dentition, lacking the large triangular tooth on the basal margin. The Ecuador and TAT206 specimens have the petiolar node smooth and shiny; the TAT212 specimen has the node irregularly rugose.