Neivamyrmex nyensis

Neivamyrmex nyensis is a rare army ant that is primarily nocturnal and subterranean. Occasionally raiding columns are found when turning over rocks.

Identification
Key to the Neivamyrmex species of the United States

These ants are rather small (1.7 to 2.5 mm in length) and light yellow in color.

Distribution based on Regional Taxon Lists
Nearctic Region: United States. Neotropical Region: Mexico.

Biology
This ant species is rather rare, it was found at the base of the Coconino Rim along Old Route 64 about 32 kilometers West of Cameron on the Navajo Reservation. A colony was found under a rock at about 7PM. Workers are polymorphic.

Worker
Queens and males are unknown.

Nomenclature

 *  nyensis. Neivamyrmex nyensis Watkins, 1977b: 421, figs. 1-4 (w.) U.S.A. See also: Snelling, G.C. & Snelling, R.R., 2007: 486.

Type Material
Nye Co.; Sand 3 mi. E Beatty; coll. G.C. and J. Wheeler #797; 16 April 1970 (not 15 May 1970); 3,500 ft.; on western slope of Bare Mt. in very rocky terrain. The bivouac was under two contiguous slightly buried stones each about 15 x 20 x 30 cm.