Adelomyrmex mackayi Fernandez ^HNS NEW SPECIES

Worker 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.

Worker diagnosis: 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.

Queen and male: Unknown.

Holotype worker: MEXICO: Chiapas, 2.1 km NW Pueblo Nuevo, Solistahuacan, Yerbabuena preserve, 2070 m , 23.ix.1992, R.S. Anderson No. 92-114 (Deposited in MCZ).

Comments. This species is close to A. myops ^HNS. However, the propodeal spines are very short.

Known only from type locality.