Gnamptogenys regularis

J. Longino (pers. comm.) reports observing a short linear column of workers walk to an apparent nest entrance on the ground. He excavated it before any activity had begun and found a small colony of Pseudomyrmex boopis. The related Gnamptogenys horni has a dietary preference for ants and beetles (Lattke, 1990). One specimen was removed from the stomach of a Tamandua tetradactylus.

Identification
Declivitous propodeal face abruptly separated from dorsal face, superolaterally with small angulate lobes; metacoxal tooth apically rounded and not triangular; dark brown body, testaceous legs. Transverse costulation can be totally absent or occupy all of the anterior nodal face. Females tend to have the anterior nodal face to tally transversely costulate. (Lattke 1995)

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Honduras, Mexico, Panama, Paraguay, Peru, Suriname, Venezuela.

Nomenclature

 * . Gnamptogenys regularis Mayr, 1870b: 965 (w.q.) MEXICO (no state data).
 * Type-material: 1 syntype worker, 1 syntype queen.
 * Type-locality: Mexico: (no further data) (Norton).
 * Type-depository: NHMW.
 * Combination in Ectatomma (Gnamptogenys): Mayr, 1887: 541;
 * combination in Gnamptogenys: Mann, 1922: 3.
 * Status as species: Dalla Torre, 1893: 26; Emery, 1896g: 45 (in key); Forel, 1899c: 8; Emery, 1911d: 45; Forel, 1911e: 254; Donisthorpe, 1915d: 335; Mann, 1922: 3; Borgmeier, 1923: 61; Donisthorpe, 1927b: 385; Brown, 1958g: 229; Kempf, 1961b: 492; Kempf, 1972a: 114; Lattke, 1990b: 20; Bolton, 1995b: 210; Lattke, 1995: 181; Lattke, et al. 2004: 348; Wild, 2007b: 27; Lattke, et al. 2007: 260 (in key); Lattke, et al. 2008: 96; Bezděčková, et al. 2015: 111; Feitosa, 2015c: 98; Feitosa & Prada-Achiardi, 2019: 673; Camacho, et al. 2020: 458 (in key).
 * Senior synonym of fiebrigi: Brown, 1958g: 229, 319; Kempf, 1972a: 114; Bolton, 1995b: 210; Lattke, 1995: 181.
 * Senior synonym of splendidum: Brown, 1958g: 229, 319; Kempf, 1972a: 114; Bolton, 1995b: 210; Lattke, 1995: 181.
 * Distribution: Argentina, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, Venezuela.
 * fiebrigi. Ectatomma (Gnamptogenys) fiebrigi Forel, 1909a: 253 (w.) PARAGUAY.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Paraguay: San Bernardino (Fiebrig).
 * Type-depository: MHNG.
 * Status as species: Emery, 1911d: 45.
 * Junior synonym of regularis: Brown, 1958g: 229, 319; Kempf, 1972a: 114; Bolton, 1995b: 209; Lattke, 1995: 181.
 * splendidum. Ectatomma (Gnamptogenys) rimulosum var. splendidum Pergande, 1896: 871 (w.) MEXICO (Nayarit).
 * Type-material: syntype workers (number not stated, “many specimens”).
 * Type-locality: Mexico: Tepic, x.-xi.1894 (Eisen & Vaslit).
 * Type-depositories: CASC, USNM.
 * Status as species: Forel, 1899c: 8.
 * Subspecies of regularis: Emery, 1911d: 45.
 * Junior synonym of regularis: Brown, 1958g: 229, 319; Kempf, 1972a: 114; Bolton, 1995b: 210; Lattke, 1995: 181.

References based on Global Ant Biodiversity Informatics

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