Aphaenogaster mexicana

Identification
Aphaenogaster mexicana is rarely collected, but can be distinguished from other species in North America due to the head being narrowed posteriorly into a neck with a collar. The antennal scapes pass the occipital margin by one-half the length of the scape. (DeMarco, 2015)

Distribution based on Regional Taxon Lists
Neotropical Region: Mexico.

Nomenclature

 * . Ischnomyrmex mexicanum Pergande, 1896: 893 (w.) MEXICO (Nayarit).
 * Combination in Aphaenogaster (Ischnomyrmex): Forel, 1899c: 60;
 * combination in Aphaenogaster (Deromyrma): Emery, 1915d: 71.
 * Status as species: Forel, 1899c: 60; Emery, 1915d: 71; Emery, 1921f: 65; Kempf, 1972a: 23; Bolton, 1995b: 71; Mackay & Dash, 2016: 8; Mackay & Mackay, 2017: 306 (redescription).

References based on Global Ant Biodiversity Informatics

 * Dattilo W. et al. 2019. MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface. Ecology https://doi.org/10.1002/ecy.2944
 * Fernandes, P.R. XXXX. Los hormigas del suelo en Mexico: Diversidad, distribucion e importancia (Hymenoptera: Formicidae).
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Pergande, T. 1895. Mexican Formicidae. Proceedings of the California Academy of Sciences Ser. 2 :850-896
 * Vasquez-Bolanos M. 2011. Checklist of the ants (Hymenoptera: Formicidae) from Mexico. Dugesiana 18(1): 95-133.
 * Villalvazo-Palacios M.,  J. F. Pérez-Domínguez,  &  M. Vásquez-Bolaños. 2014.  New  record  of Aphaenogaster punctaticeps Mackay, 1989 for Mexico and first record of Aphaenogaster mexicana (Pergande,  1896)  for  Jalisco  state  (Hymenoptera:  Formicidae:  Myrmicinae). Acta  Zoológica Mexicana, 30(2): 431-433.
 * Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133