Crematogaster coarctata mormonum

Crematogaster mormonum nest in rotten limbs in termite holes, as well as soil adjacent to the wood. Brood occurred in nests in April, sexuals in August. (Mackay and Mackay 2002)

Identification
The workers can be recognized as the pronotum is nearly smooth and shining, the upper half of the mesopleuron has well defined rugae or striae, the lower half is punctate with the punctures lining up into striae, the side of the propodeum has striae with the background shining. The dorsum of the mesosoma has poorly defined striae with the background smooth and shining. The head and the posterior face of the propodeum are predominantly smooth and shining. The pronotum has several erect hairs (approximately 3) on each pronotal shoulder. (Mackay and Mackay 2002)

Distribution
Southern California, Idaho, Utah, Nevada, New Mexico and Mexico.

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

Nomenclature

 *  mormonum. Crematogaster coarctata var. mormonum Wheeler, W.M. 1919g: 111 (w.) U.S.A. [First available use of Crematogaster lineolata subsp. coarctata var. mormonum Emery, 1895c: 284; unavailable name.] Combination in C. (Acrocoelia): Emery, 1922e: 141; in C. (Crematogaster): Buren, 1968b: 94. Raised to species: Creighton, 1950a: 215.