Gnamptogenys interrupta

Found in humid forests of lowlands and mountains (cloud forest). Taken from leaf litter samples and beneath bark of rotting logs on ground. (Lattke 1995)

Identification
A member of the mordax subgroup (in the mordax species group). Sublinear mandibles. Cephalic dorsum, mesosoma, and gastric tergum I with longitudinal costulate; gastric tergum II smooth; pleura also with smooth patches; metacoxal tooth absent. Body reddish brown; legs and antennae ferruginous. Lateral mesosomal costulate can be effaced to a variable degree and the second gastric segment can ocassionally have weak longitudinal costulae, medianly effaced. Declivitous propodeal face with longitudinal costulae and weakly developed anterolateral lobes. (Lattke 1995)

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Guatemala, Honduras, Mexico, Venezuela.

Nomenclature

 * . Ectatomma (Gnamptogenys) interruptum Mayr, 1887: 543 (w.) “South America”.
 * Type-material: holotype worker.
 * Type-locality: South America ("ohne Vaterlandsangabe.....wohl jedenfalls aus Südamerika").
 * Type-depository: NHMW.
 * Wheeler, W.M. 1909b: 228 (q).
 * Combination in Gnamptogenys: Mann, 1922: 3.
 * Status as species: Dalla Torre, 1893: 24; Forel, 1895b: 113; Emery, 1896g: 45 (in key); Wheeler, W.M. 1909b: 228; Emery, 1911d: 45; Mann, 1922: 3; Brown, 1958g: 228, 303; Kempf, 1968b: 377; Kempf, 1972a: 113; Lattke, 1990b: 15; Brandão, 1991: 345; Bolton, 1995b: 209; Lattke, 1995: 171; Lattke, et al. 2004: 346; Lattke, et al. 2007: 264 (in key); Lattke, et al. 2008: 91; Branstetter & Sáenz, 2012: 254; Feitosa, 2015c: 98; Feitosa & Prada-Achiardi, 2019: 672; Camacho, et al. 2020: 458 (in key); Marcineiro & Lattke, 2020: 4 (in key).
 * Distribution: Brazil, Colombia, Costa Rica, French Guiana, Guatemala, Honduras, Jamaica, Mexico, Panama, Suriname, Venezuela.

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).
 * Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
 * Fichaux M., B. Bechade, J. Donald, A. Weyna, J. H. C. Delabie, J. Murienne, C. Baraloto, and J. Orivel. 2019. Habitats shape taxonomic and functional composition of Neotropical ant assemblages. Oecologia 189(2): 501-513.
 * Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
 * INBio Collection (via Gbif)
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Lattke J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). Journal of Hymenoptera Research 4: 137-193
 * Lattke J. E., F. Fernández, E. E. Palacio. 2004. Una nueva especie de Gnamptogenys (Hymenoptera: Formicidae) y comentarios sobre las especies del género en Colombia y Ecuador. Iheringia. Série Zoologia 94: 341-349.
 * Lattke J. E., F. Fernández, T. M. Arias-Penna, E. E. Palacio, W. Mackay, and E. MacKay. 2008. Género Gnamptogenys Roger. Pp. 66-100 in: Jiménez, E.; Fernández, F.; Arias, T.M.; Lozano-Zambrano, F. H. (eds.) 2008. Sistemática, biogeografía y conservación de las hormigas cazadoras de Colombia. Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, xiv + 609 pp.
 * Lattke J. E., and M. A Riera-Valera. 2012. Diversidad de hormigas (Hymenoptera: Formicidae) en la hojarasca y suelo de selvas nubladas de la Cordillera de la Costa, Venezuela. Métodos en Ecología y Sistemática 7(1): 20-34.
 * Lattke, J. E. 1990b. Revisión del género Gnamptogenys Roger en Venezuela (Hymenoptera: Formicidae). Acta Terramaris 2: 1-47
 * Longino J. T., and N. M. Nadkarni. 1990. A comparison of ground and canopy leaf litter ants (Hymenoptera: Formicidae) in a Neotropical montane forest. Psyche (Cambridge) 97: 81-94.
 * Longino, J.T. 2010. Personal Communication. Longino Collection Database
 * Patrick M., D. Fowler, R. R. Dunn, and N. J. Sanders. 2012. Effects of Treefall Gap Disturbances on Ant Assemblages in a Tropical Montane Cloud Forest. Biotropica 44(4): 472478.
 * Silva R.R., and C. R. F. Brandao. 2014. Ecosystem-Wide Morphological Structure of Leaf-Litter Ant Communities along a Tropical Latitudinal Gradient. PLoSONE 9(3): e93049. doi:10.1371/journal.pone.0093049
 * Sosa-Calvo J. 2007. Ants of the leaf litter of two plateaus in Eastern Suriname. In Alonso, L.E. and J.H. Mol (eds.). 2007. A rapid biological assessment of the Lely and Nassau plateaus, Suriname (with additional information on the Brownsberg Plateau). RAP Bulletin of Biological Assessment 43. Conservation International, Arlington, VA, USA.
 * Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
 * Wheeler, William Morton. 1911. Additions to the Ant-Fauna of Jamaica. Bulletin American Museum of Natural History. 30:21-29.