Neivamyrmex graciellae

This species was only recently found to occur in the United States. Its discovery in southern Arizona raises the possibility that this species, rather than Neivamyrmex melanocephalus, might be the worker caste of Neivamyrmex mandibularis. (Snelling and Snelling 2007)

Identification
Key to the Neivamyrmex species of the United States

Distribution
UNITED STATES: Arizona. MEXICO: Jalisco, Oaxaca.

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

Worker
The male caste is unknown.

Nomenclature

 *  graciellae. Eciton gracellae Mann, 1926: 97 (w.) MEXICO. Watkins & Coody, 1986: 257 (q.). Combination in Neivamyrmex: Borgmeier, 1953: 10 (spelling emended to graciellae). See also note in Borgmeier, 1955: 389.