Neivamyrmex fumosus

This species is known only from males. All the specimens I have seen are from lights at night. An 18-month program of quantitative light trap sampling at La Selva yielded 10 specimens in three samples. They occurred in June and July. Henry Hespenheide also collected a specimen in June. (Jack Longino).

Distribution based on Regional Taxon Lists
Neotropical Region: Costa Rica, Guatemala, Mexico.

Nomenclature

 * . Eciton (Acamatus) minus var. fumosa Forel, 1913l: 211 (m.) GUATEMALA.
 * Type-material: holotype male.
 * Type-locality: Guatemala: Patulul (Peper).
 * Type-depository: MHNG.
 * Combination in Neivamyrmex: Borgmeier, 1953: 8.
 * Status as species: Borgmeier, 1955: 625 (redescription); Kempf, 1972a: 154; Watkins, 1976: 24 (in key); Watkins, 1982: 214 (in key); Bolton, 1995b: 289; Branstetter & Sáenz, 2012: 254.
 * Distribution: Costa Rica, El Salvador, Guatemala, Mexico.

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
 * Del Toro, I., M. Vázquez, W.P. Mackay, P. Rojas and R. Zapata-Mata. Hormigas (Hymenoptera: Formicidae) de Tabasco: explorando la diversidad de la mirmecofauna en las selvas tropicales de baja altitud. Dugesiana 16(1):1-14.
 * 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).
 * Longino J. T. 2013. Ants of Nicargua. Consulted on 18 Jan 2013. https://sites.google.com/site/longinollama/reports/ants-of-nicaragua
 * Longino J. T., J. Coddington, and R. K. Colwell. 2002. The ant fauna of a tropical rain forest: estimating species richness three different ways. Ecology 83: 689-702.
 * Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
 * Watkins II, J.F. 1982.The army ants of Mexico (Hymenoptera: Formicidae: Ecitoninae). Journal of the Kansas Entomological Society 55(2): 197-247.
 * Watkins J. F., II 1976. The identification and distribution of New World army ants (Dorylinae: Formicidae). Waco, Texas: Baylor University Press, 102 pp