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Species: Neivamyrmex graciellae   (Mann, 1926) 

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Taxonomic History (provided by Barry Bolton, 2021)

Eciton gracellae Mann, 1926 PDF: 97 (w.) MEXICO (Jalisco). Neotropic. Primary type information: Type-material: 9 syntype workers. Type-locality: Mexico: Jalisco, Ototonilca (W.M. Mann). Type-depositories: MCZC, USNM. AntCat AntWiki HOL

Taxonomic history

[Justified emendation of spelling to Neivamyrmex graciellae: Borgmeier, 1953 PDF: 10.].
Combination in Neivamyrmex: Borgmeier, 1953 PDF: 10.
Status as species: Borgmeier, 1955 PDF: 388 (redescription); Kempf, 1972b PDF: 154; Watkins, 1976 PDF: 16 (in key); Watkins, 1982 PDF: 211 (in key); Watkins & Coody, 1986 PDF: 256; Brandão, 1991 PDF: 360; Bolton, 1995b: 289; Snelling & Snelling, 2007 PDF: 472.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Mexico, United States
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Snelling, G. C. & Snelling, R. R., 2007, New synonymy, new species, new keys to Neivamyrmex army ants of the United States., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions. (Memoirs of the American Entomological Institute 80), pp. 459-550

Neivamyrmex graciellae (Mann)HNS

Figures 5 a-b, 35, 51, 65, 78

Eciton gracellae MannHNS, 1926: 97 (w). MEXICO, JALISCO, Ototonilco (USNM) examined.

Neivamyrmex graciellaeHNS: Borgmeier, 1953: 10. Emendation. Borgmeier, 1955: 388 - 389 (w). Watkins & Coody, 1986: 257 (q).


UNITED STATES: Arizona. MEXICO: Jalisco, Oaxaca.


UNITED STATES, ARIZONA, Santa Cruz Co., Florida Canyon , Santa Rita Mts. (LACM, GCSC).

MEXICO, JALISCO, Chamela Biological Station (USNM); Ototonilco (USNM). OAXACA, 13 mi NW Oaxaca , 5500 ft. (LACM).


This species has not been previously recorded from the United States. Its discovery in southern Arizona raises the possibility that this species, rather than N. melanocephalusHNS, might be the worker caste of N. mandibularisHNS. The question cannot now be resolved.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in oak woodland, 1 times found in tropical dry forest.

Found most commonly in these microhabitats: 2 times ground forager(s).

Elevations: collected from 100 - 1600 meters, 850 meters average

Collect Date Range: collected between 1987-12-15 and 1987-12-20

Type specimens:

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