| Adelomyrmex mackayi|
This species is now known from one area in north central Chiapas and two sites in central Guatemala. The three sites are high montane cloud forest between 1900 and 2100 m elevation. It is clearly a high elevation specialist. At Biotopo El Quetzal in Guatemala, the cloud forest on the slopes around 1700 m were dominated by Adelomyrmex robustus and Adelomyrmex paratristani. Adelomyrmex mackayi was only found by hiking up to the ridge crests at 2000 m. Adelomyrmex mackayi is in danger of mountain-top extinction resulting from climate change. (Longino 2012)
Adelomyrmex mackayi is immediately recognizable by being sharply bicolored, with dark head and mesosoma and light yellow brown gaster. Such sharply contrasting coloration is unique in the genus. (Longino 2012)
Keys including this Species
Distribution based on Regional Taxon Lists
Check distribution from AntMaps.
Distribution based on specimens
Males have yet to be collected.
The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.
- mackayi. Adelomyrmex mackayi Fernández, 2003b: 22 (w.) MEXICO.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Measurements. Holotype. HL 0.69 HW 0.59 SL 0.43 EL 0.06 WL 0.66 GL 0.84 TL 2.78 CI 86 SI 73.
Mandibles with 5 teeth decreasing in size from apical teeth. Clypeal carinae not prolongued into frontal carinae. Eyes small, with approximately 5–6 ommatidia. Hypostomal tooth small, sharp pointed. Promesonotum evenly convex. Metanotal groove deep, distinct. Propodeal spines short, notably wider than higher. Head, pronotum and mesonotum coarsely reticulate-rugose. Transverse rugae between propodeal spines. Petiole and postpetiole smooth and shining with a few carinae in the sides. Mandibles smooth with longitudinal rugae feebly marked on outer half. Mandibles, legs and gaster smooth and shining. Hairs yellowish, long and flexuous on the body, more short and appressed on antennae and legs. Body brown, antennae, legs and gaster brown-yellowish.
Longino (2012) - Similar to worker except for queen-specific characters of large compound eyes, ocelli, and enlarged mesosoma with queen-typical sclerites; pronotum smooth medially, reticulate rugose laterally; dorsal mesonotum smooth and shining anteriorly and on median strip, longitudinally rugulose posterolaterally; scutellum longitudinally rugose; katepisternum smooth and shining; anepisternum smooth ventrally, rugose dorsally; side of propodeum rugose.
Holotype worker: MEXICO: Chiapas, 2.1 km NW Pueblo Nuevo, Solistahuacán, Yerbabuena preserve, 2070 m, 23.ix.1992, R.S. Anderson No. 92-114 (Deposited in Museum of Comparative Zoology).
- Fernández, F. 2003b. Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae). Zootaxa 361: 1-52 (page 22, worker, queen described)
- Longino, J.T. 2012. A review of the ant genus Adelomyrmex Emery 1897 (Hymenoptera, Formicidae) in Central America. Zootaxa 3456, 1–35.