Holcoponera striatula

A common, widespread species that exhibits wide variation in some characters. It commonly nests in twigs within leaf litter (Fernandes et al., 2018).

Identification
A member of the striatula subgroup (in the striatula species group). This widespread, common, and fairly variable ant has been the object of a lengthy synonymic list. Most of the names were based upon differences in size, gauge of costulation, and the shape of the subpetiolar process and the mesopisternal lobe. These size differences are all normal for the species. One can recognize coarsely costulate and finely costulate specimens, as well as intermediate forms. The finely costulate ants can be found in several places: S. Brazil, Argentina, Guiana, Costa Rica, Jamaica and Hispaniola. Occasional series can be found that have transverse costulae on part or all of the propodeal declivity; this condition is not frequent on the finely costulate forms. Several series from Bolivia have a long anterior slope of the node, which approaches the condition in pleurodon. The use of the subpetiolar process in the separation of species is of limited value as a variation from subquadrate to anteriorly projecting lobe can be found in series from the same population or even nest. Brown (1957:489) already discussed the futility of using the mesepisternal lobe. (Lattke 2004)

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina, Barbados, Bolivia, Brazil, Colombia, Costa Rica, Dominican Republic, Ecuador, French Guiana , Greater Antilles, Guadeloupe, Guatemala, Guyana, Lesser Antilles, Martinique, Mexico, Panama, Paraguay, Puerto Rico, Suriname, Trinidad and Tobago, Uruguay, Venezuela.

Biology
Rosumek (2017) examined trophic and temporal niches of ants in a secondary Atlantic forest (Florianópolis, south Brazil; ), between December 2015 and January 2016. For this species: Gnamptogenys striatula (possibly a species complex) is a rare example of a Neotropical ant extensively studied in the laboratory, covering many aspects of its biology (e.g. Giraud et al., 2000; Kaptein et al., 2005). However, the only information available about its trophic niche in the wild comes from Lattke (1990), who reports remnants of several insect orders inside nests, and posteriorly called it “a generalist epigeic forager of humid forests” (Lattke, 1995). A recent account recorded it rarely on experimental vertebrate carcasses left to rot in a forest, predating the larvae and pupae of necrophagous insects (Paula et al., 2016).

At baits in this study, G. striatula  was observed using termites frequently, but crushed insects, feces and sucrose were important as well. Hence, the species will scavenge and consume sugar when given the opportunity, although they were not attracted to melezitose (an oligossacharide analog used as a proxy for honeydew). The relatively high use of feces, a less preferred resource overall, is a noteworthy feature that differentiated G. striatula from most other species of this study. It showed a moderate but significant preference for nocturnal foraging.

Lattke (1995) - A mite was found on the anterolateral petiolar side of one specimen from Beni, Bolivia.

De la Mora et al. (2016) found this species nesting in logs found in coffee farms and forests in the Soconusco region of Chiapas, Mexico.

Koch et al. (2018) sampled this species in Caryocar barsiliense trees, in southeastern Brazil cerrado, as part of a study examining species interactions in ant-plants.

Worker
Several gamergates reproduce in most colonies, while one or several dealate queens reproduce in others. Cuticular Hydrocarbons differ qualitatively and quantitatively between egg-laying and infertile workers, thus providing reliable information about current fertility (Lommelen et al. 2006).

Nomenclature

 * . Gnamptogenys striatula Mayr, in Radoszkowsky, 1884: 32 (w.) FRENCH GUIANA.
 * Type-material: syntype workers (number not stated).
 * Type-locality: French Guiana (“Cayenne française”): (no further data) (Jelski).
 * Type-depositories: BMNH, NHMW.
 * Mayr, 1887: 542 (q.m.); Wheeler, G.C. & Wheeler, J. 1952a: 123 (l.).
 * Combination in Ectatomma (Holcoponera): Mayr, 1887: 541;
 * combination in Gnamptogenys: Brown, 1958g: 229;
 * combination in Holcoponera: Emery, 1911d: 40; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Status as species: Mayr, 1887: 542; Dalla Torre, 1893: 26; Forel, 1895b: 113; Emery, 1896g: 44 (in key); Forel, 1901h: 81; Forel, 1909a: 253; Emery, 1911d: 40; Bruch, 1915: 528; Mann, 1916: 404; Wheeler, W.M. 1917g: 457; Gallardo, 1918b: 25 (redescription); Wheeler, W.M. 1922c: 3; Borgmeier, 1923: 56; Wheeler, W.M. 1925a: 4; Santschi, 1929h: 442 (redescription); Brown, 1956b: 490; Brown, 1958g: 229, 327; Kempf, 1970b: 325; Kempf & Lenko, 1976: 52; Zolessi, et al. 1988: 2; Lattke, 1990b: 20; Brandão, 1991: 345; Bolton, 1995b: 211; Lattke, 1995: 186; Lattke, et al. 2004: 348; Wild, 2007b: 27; Lattke, et al. 2007: 258 (in key); Lattke, et al. 2008: 98; Branstetter & Sáenz, 2012: 255; Bezděčková, et al. 2015: 111; Feitosa, 2015c: 98; Wetterer, et al. 2016: 11; Feitosa & Prada-Achiardi, 2019: 673; Lubertazzi, 2019: 119; Camacho, et al. 2020: 454 (in key); Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of angustiloba: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of angustipleura: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of antillana: Brown, 1956b: 490; Brown, 1958g: 300; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of arcuata: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of brasiliensis: Brown, 1958g: 229, 327; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of calcarata: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of curtulum: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of isthmica: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of mayri: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of obscurum: Santschi, 1929h: 442; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of paulina: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of recta: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of rustica: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of simplicoides: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of stolli: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of vollenweideri: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of wasmanni Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Senior synonym of wheeleri: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Material of the unavailable name hybrida referred here by Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 211; Lattke, 1995: 186.
 * Distribution: Argentina, Bolivia, Brazil, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Jamaica, Lesser Antilles, Martinique, Mexico, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, Suriname, Trinidad, Uruguay, Venezuela.
 * angustiloba. Holcoponera striatula var. angustiloba Emery, 1911d: 41.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Brazil: São Paulo (von Ihering).
 * Type-depositories: MHNG, NHMB.
 * [First available use of Ectatomma (Holcoponera) striatulum subsp. obscurum var. angustiloba Forel, 1908c: 341 (w.) BRAZIL (São Paulo); unavailable (infrasubspecific) name.]
 * Forel, 1911e: 254 (q.); Gallardo, 1918b: 23 (m.).
 * As unavailable (infrasubspecific) name: Forel, 1911e: 254.
 * Subspecies of striatula: Emery, 1911d: 41; Luederwaldt, 1918: 34; Santschi, 1919f: 37; Borgmeier, 1923: 56.
 * Subspecies of brasiliensis Santschi, 1929d: 275; Santschi, 1929h: 453 (redescription).
 * Junior synonym of striatula: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 208; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * angustipleura. Holcoponera striatula var. angustipleura Emery, 1911d: 41.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Brazil: Pará (Goeldi).
 * Type-depositories: MHNG, NHMB.
 * [First available use of Ectatomma (Holcoponera) striatulum subsp. obscurum var. angustipleura Forel, 1908c: 342 (w.) BRAZIL (Pará); unavailable (infrasubspecific) name.]
 * Subspecies of striatula: Emery, 1911d: 41; Borgmeier, 1923: 56; Eidmann, 1936a: 33.
 * Status as species: Santschi, 1929h: 456 (redescription).
 * Junior synonym of striatula: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 208; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * antillana. Holcoponera striatula var. antillana Santschi, 1929h: 444, figs. 16, 21 (w.m.) MARTINIQUE, JAMAICA.
 * Type-material: syntype workers, syntype males (numbers not stated).
 * Type-localities: Martinique (no further data), Jamaica: Kingstown (Forel), Jamaica: Port Antonio (Wright).
 * Type-depositories: MCZC, NHMB (possibly also in IEUB).
 * Junior synonym of striatula: Brown, 1956b: 490; Brown, 1958g: 300; Kempf, 1972a: 115; Bolton, 1995b: 208; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * arcuata. Holcoponera regularis var. arcuata Santschi, 1929h: 457 (w.) BRAZIL (Rio de Janeiro, Minas Gerais).
 * Type-material: holotype worker.
 * Type-locality: Brazil: Rio de Janeiro, Passo Quatro (Zikan).
 * Type-depository: NHMB.
 * Replacement name for Holcoponera regularis Santschi, 1929d: 275 [Junior secondary homonym of Gnamptogenys regularis Mayr, 1870b: 965.]
 * [Note: arcuata junior synonym of regularis Santschi, 1929d: 275 (synonymy by Brown, 1958g: 227); hence arcuata first available replacement name (Bolton, 1995b: 208).]
 * Combination in Gnamptogenys: Brown, 1958g: 227.
 * Status as species: Brown, 1958g: 227; Kempf, 1972a: 112; Bolton, 1995b: 208.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * brasiliensis. Holcoponera brasiliensis Emery, 1902a: 181 (w.q.m.) BRAZIL (Santa Catarina, Rio de Janeiro).
 * Type-material: syntype workers, syntype queens, syntype males (numbers not stated).
 * Type-localities: Brazil: Santa Catarina (no collector’s name), Brazil: Rio de Janeiro (no collector’s name).
 * Type-depository: MSNG.
 * Wheeler, G.C. & Wheeler, J. 1952a: 124 (l.).
 * Status as species: Emery, 1906c: 113; Emery, 1911d: 40; Bruch, 1914: 213; Gallardo, 1918b: 23 (redescription); Wheeler, W.M. 1922c: 3; Borgmeier, 1923: 55; Santschi, 1929h: 451 (redescription); Kusnezov, 1953b: 336.
 * Junior synonym of striatula: Brown, 1958g: 229, 327; Kempf, 1972a: 115; Bolton, 1995b: 208; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * calcarata. Holcoponera brasiliensis var. calcarata Santschi, 1929h: 452, fig. 28 (w.) BRAZIL (São Paulo).
 * Type-material: 2 syntype workers.
 * Type-locality: Brazil: São Paulo, Iguape (B.S. Pessoa).
 * Type-depository: NHMB.
 * Subspecies of brasiliensis: Santschi, 1931e: 273; Santschi, 1933e: 106.
 * Junior synonym of striatula: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 208; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * Camacho, et al. 2020: 473 (q.).
 * Junior synonym of striatula: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 210; Lattke, 1995: 186.
 * Status as species: Camacho, et al. 2020: 454 (in key), 472 (redescription); Camacho, Franco, Branstetter, et al. 2022: 11.
 * Distribution: Brazil.
 * curtulum. Ectatomma (Holcoponera) curtulum Emery, 1896g: 47, pl. 1, fig. 8 (w.) COSTA RICA.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Costa Rica: Alajuela (A. Alfaro).
 * Type-depositories: MSNG, NHMB.
 * Forel, 1899c: 7 (q.).
 * Combination in Holcoponera: Emery, 1911d: 40;
 * combination in Gnamptogenys: Brown, 1958g: 228.
 * Status as species: Forel, 1899c: 7; Emery, 1911d: 40; Bruch, 1914: 213; Santschi, 1929h: 469 (redescription); Wheeler, W.M. 1933a: 62; Brown, 1958g: 228, 320; Kempf, 1972a: 112; Bolton, 1995b: 209.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * isthmica. Holcoponera wasmanni var. isthmica Santschi, 1929h: 467 (w.) PANAMA.
 * Type-material: 3 syntype workers.
 * Type-locality: Panama: Tabogila, 19.xi.1911 (W.M. Wheeler).
 * Type-depository: NHMB.
 * Junior synonym of wasmanni: Brown, 1958g: 230; Kempf, 1972a: 116; Bolton, 1995b: 209.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * mayri. Holcoponera brasiliensis var. mayri Santschi, 1929h: 453 (w.) COSTA RICA.
 * Type-material: 2 syntype workers.
 * Type-locality: Costa Rica: (no further data).
 * Type-depositories: NHMB, NHMW.
 * Junior synonym of wheeleri: Brown, 1958g: 230; Kempf, 1972a: 116; Bolton, 1995b: 209.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * obscurum. Ectatomma (Holcoponera) obscurum Emery, 1896g: 48 (w.) BRAZIL (Pará).
 * Type-material: holotype worker.
 * Type-locality: Brazil: Pará (no collector’s name).
 * Type-depository: MSNG.
 * Combination in Holcoponera: Emery, 1911d: 41.
 * Subspecies of striatula: Forel, 1908c: 341; Forel, 1911e: 254; Emery, 1911d: 41; Luederwaldt, 1918: 34; Borgmeier, 1923: 56; Donisthorpe, 1927b: 385.
 * Junior synonym of striatula: Santschi, 1929h: 442; Kempf, 1972a: 115; Bolton, 1995b: 210; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * paulina. Ectatomma (Holcomyrmex) curtulum var. paulina Forel, 1908c: 342 (w.) BRAZIL (São Paulo).
 * [Note: Holcomyrmex here is a misspelling of Holcoponera.]
 * Type-material: syntype workers (number not stated).
 * Type-locality: Brazil: São Paulo (von Ihering).
 * Type-depository: MHNG.
 * Combination in Holcoponera: Emery, 1911d: 40.
 * Subspecies of curtula: Emery, 1911d: 40; Forel, 1912c: 33; Borgmeier, 1923: 55.
 * Subspecies of brasiliensis: Santschi, 1929h: 456 (redescription).
 * Junior synonym of striatula: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 210; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * recta. Holcoponera emeryi var. recta Santschi, 1929h: 465 (w.) BOLIVIA.
 * Type-material: 3 syntype workers.
 * Type-locality: Bolivia: Tumufasa (= Tumupasa) (W.M. Mann).
 * Type-depositories: MSNG, NHMB.
 * [Note: specimens from the original series that are present in MCZC and USNM (Brown, 1958g: 320) were not included among the 3 specimens on which the taxon was based. Santschi, 1929h: 465, records that the 3 workers came to him from MSNG, and Baroni Urbani, 1973b: 127, notes that only 1 syntype is retained in NHMB.]
 * Junior synonym of pleurodon: Brown, 1958g: 229, 320; Kempf, 1972a: 114; Bolton, 1995b: 210.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * regularis. Holcoponera regularis Santschi, 1929d: 275 (w.) BRAZIL (Minas Gerais, Rio de Janeiro).
 * Type-material: 7 syntype workers.
 * Type-localities: 4 workers Brazil: Rio de Janeiro, Passo Quatro (Zikan), 1 worker Brazil: Rio de Janeiro, Petropolis (no collector’s name), 2 workers Brazil: Paraná, Cascatinha (Borgmeier).
 * Type-depository: NHMB.
 * [Note: Baroni Urbani, 1973b: 128, records the 4 Passo Quatro specimens in NHMB; location of remainder unknown.]
 * [Also described as new by Santschi, 1929h: 457.]
 * [Junior secondary homonym of Gnamptogenys regularis Mayr, 1870b: 965.]
 * Replacement name: Holcoponera regularis var. arcuata Santschi, 1929h: 457.
 * [Note: arcuata junior synonym of regularis Santschi (synonymy by Brown, 1958g: 227, 327); hence arcuata first available replacement name.]
 * rustica. Holcoponera rustica Santschi, 1929h: 446, figs. 11, 18 (w.) PARAGUAY.
 * Type-material: holotype worker.
 * Type-locality: Paraguay: (no further data) (Forel).
 * Type-depository: NHMB.
 * Combination in Gnamptogenys: Brown, 1958g: 229.
 * Status as species: Brown, 1958g: 229; Kempf, 1972a: 114; Bolton, 1995b: 210.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * simplicoides. Holcoponera striatula var. simplicoides Emery, 1911d: 41.
 * Type-material: syntype workers (number not stated).
 * Type-locality: Brazil: São Paulo (von Ihering).
 * Type-depositories: MHNG, NHMB.
 * [First available use of Ectatomma (Holcoponera) striatulum subsp. obscurum var. simplicoides Forel, 1908c: 341 (w.) BRAZIL (São Paulo); unavailable (infrasubspecific) name.]
 * Santschi, 1929h: 455 (m.).
 * Combination in Gnamptogenys: Brown, 1958g: 229.
 * Subspecies of striatula: Emery, 1911d: 41; Forel, 1912c: 33; Luederwaldt, 1918: 34; Borgmeier, 1923: 56.
 * Subspecies of brasiliensis: Santschi, 1929h: 454 (redescription).
 * Status as species: Brown, 1958g: 229; Kempf, 1972a: 114; Bolton, 1995b: 210.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * stolli. Ectatomma (Holcoponera) curtulum var. stolli Forel, 1899c: 7 (w.m.) GUATEMALA.
 * Type-material: syntype workers, syntype males (numbers not stated).
 * Type-locality: Guatemala: Retalhuleu (Stoll).
 * Type-depositories: MHNG, NHMB.
 * Combination in Holcoponera: Emery, 1911d: 40.
 * Subspecies of curtulum: Emery, 1911d: 40; Santschi, 1929h: 470 (redescription).
 * Junior synonym of curtulum: Brown, 1958g: 228, 320; Kempf, 1972a: 112; Bolton, 1995b: 211.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * vollenweideri. Holcoponera curtula var. vollenweideri Forel, 1912c: 33 (w.) ARGENTINA (no province data).
 * Type-material: holotype (?) worker.
 * [Note: no indication of number of specimens is given.]
 * Type-locality: Argentina: (no further data) (Vollenweider).
 * Type-depository: MHNG.
 * Subspecies of curtulum: Santschi, 1916b: 510; Gallardo, 1918b: 24; Santschi, 1919f: 37.
 * Junior synonym of angustiloba: Santschi, 1929d: 275; Santschi, 1929h: 453.
 * Junior synonym of striatula: Brown, 1958g: 229; Kempf, 1972a: 115; Bolton, 1995b: 210; Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * wasmanni. Holcoponera wasmanni Santschi, 1929h: 466, fig. 42 (w.) BRAZIL (Pará).
 * Type-material: holotype worker.
 * Type-locality: Brazil: Pará (Schmalz).
 * Type-depository: MSNG.
 * Combination in Gnamptogenys: Brown, 1958g: 230.
 * Status as species: Brown, 1958g: 230; Kempf, 1972a: 116; Bolton, 1995b: 211.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.
 * wheeleri. Holcoponera rustica st. wheeleri Santschi, 1929h: 448, figs. 9, 19 (w.) COSTA RICA.
 * Type-material: 3 syntype workers.
 * [Note: Santschi described this taxon from 3 workers, which Baroni Urbani, 1973b: 128, recorded as present in NHMB. Therefore the specimen in MCZC, noted by Lattke, 1995: 149, may be from the same series but is not a syntype.]
 * Type-locality: Costa Rica: Porto Limon, 24.xi.1928 (W.M. Wheeler).
 * Type-depository: NHMB.
 * Wheeler, G.C. & Wheeler, J. 1952a: 124 (l.).
 * Combination in Gnamptogenys: Brown, 1958g: 230.
 * Status as species: Brown, 1958g: 230; Kempf, 1972a: 116; Bolton, 1995b: 211.
 * Junior synonym of striatula: Lattke, 1995: 186; Camacho, Franco, Branstetter, et al. 2022: 11.

Taxonomic Notes
Lattke (1995): Diagnosis - Pronotal costulae semicircular; dorsoposterior mesosomal costulae longitudinal and slightly diverging caudad; mesometanotum sometimes with semiciruclar costulae; triangular metacoxal teeth; body dark brown.

Specimens determined as G. curtula by Brown for the 1958 revision are G. striatula, and so are several specimens determined as H. wasmanni var. isthmica. Specimens labelled as type series of H. emeryi recta were studied in the USNM and found to be conspecific with striatula and not with G. pleurodon. I was able to examine two G. striatula syntypes in the BMNH. Bill Brown generously shared the notes he took during his study of the following Santschi types in 1963: H. regularis, H. regularis v. arcuata, H. rustica, and H. wheeleri. He concluded that they are all the same species. He also wrote that these specimens plus additional types and specimens he studied (H. striatula v. antillana, v. angustipleura, H. wasmanni, H. wasmanni v. isthmica, H. brasiliensis v. calcarata, v. mayri, H. curtula v. paulina (det. Santschi)) perhaps could be separated into two species using the subpetiolar process. But as already has been mentioned, this process has proven to be an unreliable character for species determination in this group.

References based on Global Ant Biodiversity Informatics

 * Achury R., and A.V. Suarez. 2017. Richness and composition of ground-dwelling ants in tropical rainforest and surrounding landscapes in the Colombian Inter-Andean valley. Neotropical Entomology https://doi.org/10.1007/s13744-017-0565-4
 * Antoniazzi R., R. N. S. L. Garoo, W. Dattilo, S. P. Ribeiro, and F. S. Neves. 2019. Ant species richness and interactions in canopies of two distinct successional stages in a tropical dry forest. The Science of Nature 106: 20
 * Arias-Penna T. M. 2008. Subfamilia Ectatomminae. Pp. 53-107 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.
 * Bestelmeyer, B.T. 2000. The Trade-off between Thermal Tolerance and Behavioural Dominance in a Subtropical South American Ant Community. Journal of Animal Ecology 69(6): 998-1009
 * Biagiotti G., J. A. Alves Pereira, C. Rodrigues Ribas, V. Korasaki, R. Zanetti, A. C. Medeiros de Queiroz. 2013. Richness and species composition of ants in the recovery process of a Gully erosion. Cerne, Lavras 19(4): 661-668.
 * Borges D. S., C. S. F. Mariano, J. H. C. Delabie, and S. G. Pompolo. 2004. Estudos citogenéticos em formigas neotropicais do gênero Gnamptogenys Roger (Hymenoptera, Formicidae, Ectatomminae). Revista Brasileira de Entomologia 48: 481-484.
 * Borges, D.S., C.S.F. Mariano, J.H.C. Delabie and S.G. Pompolo. 2004. Estudos citogenéticos em formigas neotropicais do gênero GnamptogenysRoger (Hymenoptera, Formicidae, Ectatomminae). Revista Brasileira de Entomologia 48(4): 481-484.
 * Borgmeier T. 1923. Catalogo systematico e synonymico das formigas do Brasil. 1 parte. Subfam. Dorylinae, Cerapachyinae, Ponerinae, Dolichoderinae. Archivos do Museu Nacional (Rio de Janeiro) 24: 33-103.
 * Brandao, C.R.F. 1991. Adendos ao catalogo abreviado das formigas da regiao neotropical (Hymenoptera: Formicidae). Rev. Bras. Entomol. 35: 319-412.
 * Branstetter M. G. and L. Sáenz. 2012. Las hormigas (Hymenoptera: Formicidae) de Guatemala. Pp. 221-268 in: Cano E. B. and J. C. Schuster. (eds.) 2012. Biodiversidad de Guatemala. Volumen 2. Guatemala: Universidad del Valle de Guatemala, iv + 328 pp
 * Brown W. L. Jr. 1956. Notes on the ant genus Holcoponera Mayr, with descriptions of two new species. Insectes Sociaux 3: 489-497.
 * Brown W. L., Jr. 1958. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118: 173-362.
 * Caldart V. M., S. Iop, J. A. Lutinski, and F. R. Mello Garcia. 2012. Ants diversity (Hymenoptera, Formicidae) of the urban perimeter of Chapecó county, Santa Catarina, Brazil. Revista Brasileira de Zoociências 14 (1, 2, 3): 81-94.
 * Campos R. B. F., J. H. Schoereder, and C. F. Sperber. 2007. Small-scale patch dynamics after disturbance in litter ant communities. Basic and Applied Ecology 8: 3643.
 * Clemes Cardoso D., and J. H. Schoereder. 2014. Biotic and abiotic factors shaping ant (Hymenoptera: Formicidae) assemblages in Brazilian coastal sand dunes: the case of restinga in Santa Catarina. Florida Entomologist 97(4): 1443-1450.
 * Clemes Cardoso D., and M. Passos Cristiano. 2010. Myrmecofauna of the Southern Catarinense Restinga sandy coastal plain: new records of species occurrence for the state of Santa Catarina and Brazil. Sociobiology 55(1b): 229-239.
 * Costa-Milanez C. B., G. Lourenco-Silva, P. T. A. Castro, J. D. Majer, and S. P. Ribeiro. 2014. Are ant assemblages of Brazilian veredas characterised by location or habitat type? Braz. J. Biol. 74(1): 89-99.
 * Cuezzo, F. 1998. Formicidae. Chapter 42 in Morrone J.J., and S. Coscaron (dirs) Biodiversidad de artropodos argentinos: una perspectiva biotaxonomica Ediciones Sur, La Plata. Pages 452-462.
 * Dattilo W. et al. 2019. MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface. Ecology https://doi.org/10.1002/ecy.2944
 * Davidson, D.W. 2005. Ecological stoichiometry of ants in a New World rain forest. Oecologia 142:221-231
 * De La Mora, A., and S. M. Philpott. 2010. Wood-nesting ants and their parasites in forests and coffee agroecosystems. Environmental Entomology 39: 1473-1481.
 * De la Mora, A., C. J. Murnen, and S. M. Philpott. 2013. Local and landscape drivers of ant-communities in Neotropical coffee landscapes. Biodiversity and Conservation 22: 871-888.
 * De la Mora, A., J. A. Garcia-Ballinas, and S. M. Philpott. 2015. Local, landscape, and diversity drivers of predation services provided by ants in a coffee landscape in Chiapas, Mexico. Agriculture, Ecosystems & Environment 201: 83-91.
 * 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.
 * Delabie J. H. C., R. Céréghino, S. Groc, A. Dejean, M. Gibernau, B. Corbara, and A. Dejean. 2009. Ants as biological indicators of Wayana Amerindian land use in French Guiana. Comptes Rendus Biologies 332(7): 673-684.
 * Dias N. D. S., R. Zanetti, M. S. Santos, M. F. Gomes, V. Peñaflor, S. M. F. Broglio, and J. H. C. Delabie. 2012. The impact of coffee and pasture agriculture on predatory and omnivorous leaf-litter ants. Journal of Insect Science 13:29. Available online: http://www.insectscience.org/13.29
 * Dias N. S., R. Zanetti, M. S. Santos, J. Louzada, and J. H. C. Delabie. 2008. Interaction between forest fragments and adjacent coffee and pasture agroecosystems: responses of the ant communities (Hymenoptera, Formicidae). Iheringia, Sér. Zool., Porto Alegre, 98(1): 136-142.
 * Drose W., L. R. Podgaiski, C. Fagundes Dias, M. de Souza Mendonca. 2019. Local and regional drivers of ant communities in forest-grassland ecotones in South Brazil: A taxonomic and phylogenetic approach. Plos ONE 14(4): e0215310.
 * Eidmann H. 1936. Ökologisch-faunistische Studien an südbrasilianischen Ameisen. [part]. Arb. Physiol. Angew. Entomol. Berl.-Dahl. 3: 26-48.
 * Emery C. 1896. Studi sulle formiche della fauna neotropica. XVII-XXV. Bullettino della Società Entomologica Italiana 28: 33-107.
 * Emery C. 1902. Description d'une nouvelle espèce de fourmi du Brésil. Bulletin de la Société Entomologique de France 1902: 181.
 * Emery C. 1906. Studi sulle formiche della fauna neotropica. XXVI. Bullettino della Società Entomologica Italiana 37: 107-194.
 * Emery C. 1911. Hymenoptera. Fam. Formicidae. Subfam. Ponerinae. Genera Insectorum 118: 1-125.
 * Favretto M. A., E. Bortolon dos Santos, and C. J. Geuster. 2013. Entomofauna from West of Santa Catarina State, South of Brazil. EntomoBrasilis 6 (1): 42-63.
 * Feitosa R. dos S. M. and A. S. Ribeiro. 2005. Mirmecofauna (Hymenoptera, Formicidae) de serapilheira de uma área de Floresta Atlântica no Parque Estadual daCantareira  São Paulo, Brasil. Biotemas 18: 51-71.
 * Fernandes T. T., R. R. Silva, D. Rodrigues de Souza-Campana, O. Guilherme Morais da Silva, and M. Santina de Castro Morini. 2019. Winged ants (Hymenoptera: Formicidae) presence in twigs on the leaf litter of Atlantic Forest. Biota Neotropica 19(3): http://dx.doi.org/10.1590/1676-0611-bn-2018-0694
 * Fernandes T. T., R. Rosa da Silva, D. Rodrigues de Souza, N. Araujo, and M. Santina de Castro Morini. 2012. Undecomposed Twigs in the Leaf Litter as Nest-Building Resources for Ants (Hymenoptera: Formicidae) in Areas of the Atlantic Forest in the Southeastern Region of Brazil. Psyche doi:10.1155/2012/896473
 * Fernandes T. T., W. Dattilo, R. R. Silva, P. Luna, C. M. Oliveira, and M. Santina de Castro Morini. 2019. Ant occupation of twigs in the leaf litter of the Atlantic Forest: influence of the environment and external twig structure. Tropical Conservation Science 12: 1-9.
 * Fernandes, P.R. XXXX. Los hormigas del suelo en Mexico: Diversidad, distribucion e importancia (Hymenoptera: Formicidae).
 * Fernández F., and T. M. Arias-Penna. 2008. Las hormigas cazadoras en la región Neotropical. Pp. 3-39 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.
 * Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
 * Figueiredo C. J. de, R. R. da Silva, C. de Bortoli Munhae, and M. S. de Castro Morini. 2013. Ant fauna (Hymenoptera: Formicidae) attracted to underground traps in Atlantic Forest. Biota Neotrop 13(1):  176-182
 * Fleck M. D., E. Bisognin Cantarelli, and F. Granzotto. 2015. Register of new species of ants (Hymenoptera: Formicidae) in Rio Grande do Sul state. Ciencia Florestal, Santa Maria 25(2): 491-499.
 * Forel A. 1908. Ameisen aus Sao Paulo (Brasilien), Paraguay etc. gesammelt von Prof. Herm. v. Ihering, Dr. Lutz, Dr. Fiebrig, etc. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 58: 340-418.
 * Forel A. 1909. Ameisen aus Guatemala usw., Paraguay und Argentinien (Hym.). Deutsche Entomologische Zeitschrift 1909: 239-269.
 * Forel A. 1911. Die Ameisen des K. Zoologischen Museums in München. Sitzungsber. Math.-Phys. Kl. K. Bayer. Akad. Wiss. Münch. 11: 249-303.
 * Forel A. 1912. Formicides néotropiques. Part I. Annales de la Société Entomologique de Belgique. 56: 28-49.
 * 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.
 * Galkowski C. 2016. New data on the ants from the Guadeloupe (Hymenoptera, Formicidae). Bull. Soc. Linn. Bordeaux 151, 44(1): 25-36.
 * Gallardo A. 1918. Las hormigas de la República Argentina. Subfamilia Ponerinas. Anales del Museo Nacional de Historia Natural de Buenos Aires 30: 1-112.
 * Groc S., J. H. C. Delabie, F. Fernandez, M. Leponce, J. Orivel, R. Silvestre, Heraldo L. Vasconcelos, and A. Dejean. 2013. Leaf-litter ant communities (Hymenoptera: Formicidae) in a pristine Guianese rainforest: stable functional structure versus high species turnover. Myrmecological News 19: 43-51.
 * Groc S., J. Orivel, A. Dejean, J. Martin, M. Etienne, B. Corbara, and J. H. C. Delabie. 2009. Baseline study of the leaf-litter ant fauna in a French Guianese forest. Insect Conservation and Diversity 2: 183-193.
 * INBio Collection (via Gbif)
 * Ilha C., J. A. Lutinski, D. Von Muller Pereira, F. R. Mello Garcia. 2009. Riqueza de formigas (Hymenoptera: Formicidae) de Bacia da Sanga Caramuru, municipio de Chapeco-SC. Biotemas 22(4): 95-105.
 * Iop S., V. M. Caldart, J. A. Lutinski, and F. R. Mello Garcia. 2009. Formigas urbanas da cidade de Xanxerê, Santa Catarina, Brasil. Biotemas 22(2): 55-64.
 * Jacobs J. M., J. T. Longino, and F. J. Joyce. 2011. Ants of the Islas Murciélago: an inventory of the ants on tropical dry forest islands in northwest Costa Rica. Tropical Conservation Science 4(2): 149-171.
 * Jaffe, Klaus and Lattke, John. 1994. Ant Fauna of the French and Venezuelan Islands in the Caribbean in Exotic Ants, editor D.F. Williams. 182-190.
 * Kamura C. M., M. S. C. Morini, C. J. Figueiredo, O. C. Bueno, and A. E. C. Campos-Farinha. 2007. Ant communities (Hymenoptera: Formicidae) in an urban ecosystem near the Atlantic Rainforest. Braz. J. Biol. 67(4): 635-641.
 * Kempf W. W., and K. Lenko. 1976. Levantamento da formicifauna no litoral norte e ilhas adjacentes do Estado de São Paulo, Brasil. I. Subfamilias Dorylinae, Ponerinae e Pseudomyrmecinae (Hym., Formicidae). Studia Entomologica 19: 45-66.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Kusnezov N. 1953. La fauna mirmecológica de Bolivia. Folia Universitaria. Cochabamba 6: 211-229.
 * Kusnezov N. 1956. Claves para la identificación de las hormigas de la fauna argentina. Idia 104-105: 1-56.
 * Kusnezov N. 1958. Lilidris metatarsalis gen. et spec. nov. (Hym. Formicidae). Acta Zoologica Lilloana 15: 189-193.
 * Lapola D. M., and H. G. Fowler. 2008. Questioning the implementation of habitat corridors: a case study in interior São Paulo using ants as bioindicators. Braz. J. Biol., 68(1): 11-20.
 * 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. 1990b. Revisión del género Gnamptogenys Roger en Venezuela (Hymenoptera: Formicidae). Acta Terramaris 2: 1-47
 * Leal I. R. and B. Cortes Lopes. 1992. Estrutura das comunidades de formigas (Hymenoptera: Formicidae) de solo e vegetacao no morro da lagoa de conceicao, Ilha de Santa Catarina, SC. Capa 5(1): 107-122.
 * Lommelan, E., et al., 2006. Cuticular hydrocarbons provide reliable cues of fertility in the ant Gnamptogenys striatula. Journal of Chemical Ecology XXX:XXX-XXX.
 * Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.
 * Longino J. et al. ADMAC project. Accessed on March 24th 2017 at https://sites.google.com/site/admacsite/
 * Longino, J.T. 2010. Personal Communication. Longino Collection Database
 * Luederwaldt H. 1918. Notas myrmecologicas. Rev. Mus. Paul. 10: 29-64.
 * Lutinski J. A., B. C. Lopes, and A. B. B.de Morais. 2013. Diversidade de formigas urbanas (Hymenoptera: Formicidae) de dez cidades do sul do Brasil. Biota Neotrop. 13(3): 332-342.
 * Lutinski J. A., F. R. Mello Garcia, C. J. Lutinska, and S. Iop. 2008. Ants diversity in Floresta Nacional de Chapecó in Santa Catarina State, Brazil. Ciência Rural, Santa Maria 38(7): 1810-1816.
 * Maes, J.-M. and W.P. MacKay. 1993. Catalogo de las hormigas (Hymenoptera: Formicidae) de Nicaragua. Revista Nicaraguense de Entomologia 23.
 * Marinho C. G. S., R. Zanetti, J. H. C. Delabie, M. N. Schlindwein, and L. de S. Ramos. 2002. Ant (Hymenoptera: Formicidae) Diversity in Eucalyptus (Myrtaceae) Plantations and Cerrado Litter in Minas Gerais, Brazil. Neotropical Entomology 31(2): 187-195.
 * Marques G. D. V., and K. Del-Claro. 2006. The Ant Fauna in a Cerrado area: The Influence of Vegetation Structure and Seasonality (Hymenoptera: Formicidae). Sociobiology 47(1): 1-18.
 * Medeiros Macedo L. P., E. B. Filho, amd J. H. C. Delabie. 2011. Epigean ant communities in Atlantic Forest remnants of São Paulo: a comparative study using the guild concept. Revista Brasileira de Entomologia 55(1): 7578.
 * Mentone T. O., E. A. Diniz, C. B. Munhae, O. C. Bueno, and M. S. C. Morini. 2011. Composition of ant fauna (Hymenoptera: Formicidae) at litter in areas of semi-deciduous forest and Eucalyptus spp., in Southeastern Brazil. Biota Neotrop. 11(2): http://www.biotaneotropica.org.br/v11n2/en/abstract?inventory+bn00511022011.
 * Miranda P. N., F. B. Baccaro, E. F. Morato, M. A. Oliveira. J. H. C. Delabie. 2017. Limited effects of low-intensity forest management on ant assemblages in southwestern Amazonian forests. Biodivers. Conserv. DOI 10.1007/s10531-017-1368-y
 * Morini M. S. de C., C. de B. Munhae, R. Leung, D. F. Candiani, and J. C. Voltolini. 2007. Comunidades de formigas (Hymenoptera, Formicidae) em fragmentos de Mata Atlântica situados em áreas urbanizadas. Iheringia, Sér. Zool., Porto Alegre, 97(3): 246-252.
 * Munhae C. B., Z. A. F. N. Bueno, M. S. C. Morini, and R. R. Silva. 2009. Composition of the Ant Fauna (Hymenoptera: Formicidae) in Public Squares in Southern Brazil. Sociobiology 53(2B): 455-472.
 * Nascimento Santos M., J. H. C. Delabie, and J. M. Queiroz. 2019. Biodiversity conservation in urban parks: a study of ground-dwelling ants (Hymenoptera: Formicidae) in Rio de Janeiro City. Urban Ecosystems https://doi.org/10.1007/s11252-019-00872-8
 * Nunes F. A., G. B. Martins Segundo, Y. B. Vasconcelos, R. Azevedo, and Y. Quinet. 2011. Ground-foraging ants (Hymenoptera: Formicidae) and rainfall effect on pitfall trapping in a deciduous thorn  woodland (Caatinga), Northeastern Brazil. Rev. Biol. Trop. 59 (4): 1637-1650.
 * Oliveira Mentone T. de, E. A. Diniz, C. de Bortoli Munhae, O. Correa Bueno and M. S. de Castro Morini. 2012. Composition of ant fauna (Hymenoptera: Formicidae) at litter in areas of semi-deciduous forest and Eucalyptus spp., in Southeastern Brazil. Biota Neotrop 11(2): 237-246.
 * Olson D. M. 1991. A comparison of the efficacy of litter sifting and pitfall traps for sampling leaf litter ants (Hymenoptera, Formicidae) in a tropical wet forest, Costa Rica. Biotropica 23(2): 166-172.
 * Pacheco, R., R.R. Silva, M.S. de C. Morini, C.R.F. Brandao. 2009. A Comparison of the Leaf-Litter Ant Fauna in a Secondary Atlantic Forest with an Adjacent Pine Plantation in Southeastern Brazil. Neotropical Entomology 38(1):055-065
 * Pereira J. C., J. H. C. Delabie, L. R. S. Zanette, and Y. Quinet. 2014. Studies on an Enigmatic Blepharidatta Wheeler Population (Hymenoptera: Formicidae) from the Brazilian Caatinga. Sociobiology 61(1): 52-59.
 * Perez-Lachaud, G., J. M. Heraty, A. Carmichael, and J. P. Lachaud. 2006. Biology and behavior of Kapala (Hymenoptera: Eucharitidae) attacking Ectatomma, Gnamptogenys, and Pachycondyla (Formicidae: Ectatomminae and Ponerinae) in Chiapas, Mexico. Annals of the Entomological Society of America 99: 567-576.
 * Philpott S. M., I. Perfecto, and J. Vandermeer. 2006. Effects of management intensity and season on arboreal ant diversity and abundance in coffee agroecosystems. 15: 139-155.
 * Philpott, S.M., P. Bichier, R. Rice, and R. Greenberg. 2007. Field testing ecological and economic benefits of coffee certification programs. Conservation Biology 21: 975-985.
 * Pires de Prado L., R. M. Feitosa, S. Pinzon Triana, J. A. Munoz Gutierrez, G. X. Rousseau, R. Alves Silva, G. M. Siqueira, C. L. Caldas dos Santos, F. Veras Silva, T. Sanches Ranzani da Silva, A. Casadei-Ferreira, R. Rosa da Silva, and J. Andrade-Silva. 2019. An overview of the ant fauna (Hymenoptera: Formicidae) of the state of Maranhao, Brazil. Pap. Avulsos Zool. 59: e20195938.
 * Pérez-Lachaud, G., J.M. Heraty, A. Carmichael and J.-P. Lachaud. 2006. Biology and Behavior of Kapala (Hymenoptera: Eucharitidae) Attacking Ectatomma, Gnamptogenys, and Pachycondyla (Formicidae: Ectatomminae and Ponerinae) in Chiapas, Mexico. Annals of the Entomological Society of America. 99(3):567-576
 * Quiroz-Robledo, L.N. and J. Valenzuela-Gonzalez. 2007. Distribution of poneromorph ants (Hymenoptera: Formicidae) in the Mexican state of Morelos. Florida Entomologist 90(4):609-615
 * Radoszkowsky O. 1884. Fourmis de Cayenne Française. Trudy Russkago Entomologicheskago Obshchestva 18: 30-39.
 * Ramos L. de S., C. G. S. Marinho, R. Zanetti, and J. H. C. Delabie. 2003. Impacto de iscas formicidas granuladas sobre a mirmecofauna não-alvo em eucaliptais segundo duas formas de aplicacação / Impact of formicid granulated baits on non-target ants in eucalyptus plantations according to two forms of application. Neotropical Entomology 32(2): 231-237.
 * Rodrigues de Souza D., E. Stingel, L. C. de Almeida, M. A. Lazarini, C. de Bortoli Munhae, A. J. Mayhe-Nunes, O. Correa Bueno, and M. Santina de C. Morini. 2010. Ant Diversity in a Sugarcane Culture without the Use of Straw Burning in Southeast, São Paulo, Brazil. American Journal of Agricultural and Biological Sciences 5 (2): 183-188.
 * Rodrigues de Souza D., E. Stingel, L. C. de Almeida, M. A. Lazarini, C. de Bortoli Munhae, O. Correa Bueno, C. R. Archangelo, and M. Santina de C. Morini. 2010. Field methods for the study of ants in sugarcane plantations in Southeastern Brazil. Sci. Agric. (Piracicaba, Braz.) 67(6): 651-657.
 * Rojas Fernandez P. 2010. Capítulo 24. Hormigas (Insecta: Hymenoptera: Formicidae). In: Diversidad Biológica de Veracruz. Volumen Invertebrados. CONABIO-Gobierno del Estado de Veracruz.
 * Rosa da Silva R. 1999. Formigas (Hymenoptera: Formicidae) do oeste de Santa Catarina: historico das coletas e lista atualizada das especies do Estado de Santa Catarina. Biotemas 12(2): 75-100.
 * Rosumek, F.B., M.A. Ulyssea, B.C. Lopes, J. Steiner. 2008. Formigas de solo e de bromélias em uma área de Mata Atlântica, Ilha de Santa Catarina, sul do Brasil: Levantamento de espécies e novos registros. Revista Biotemas 21(4):81-89.
 * Ryder Wilkie K.T., A. L. Mertl, and J. F. A. Traniello. 2010. Species Diversity and Distribution Patterns of the Ants of Amazonian Ecuador. PLoS ONE 5(10): e13146.doi:10.1371/journal.pone.0013146
 * Salinas P. J. 2010. Catalogue of the ants of the Táchira State, Venezuela, with notes on their biodiversity, biogeography and ecology (Hymenoptera: Formicidae: Amblyioponinae, Ponerinae, Proceratiinae, Myrmicinae, Ecitoninae, Formicinae, Pseudomyrmecinae, Dolichoderinae). Boletín de la SEA 47: 315-328.
 * Santos M. S., J. N. C. Louzada, N. Dias, R. Zanetti, J. H. C. Delabie, and I. C. Nascimento. 2006. Litter ants richness (Hymenoptera, Formicidae) in remnants of a semi-deciduous forest in the Atlantic rain forest, Alto do Rio Grande region, Minas Gerais, Brazil. Iheringia, Sér. Zool., Porto Alegre, 96(1): 95-101.
 * Santos P. P., A. Vasconcelos, B. Jahyny, and J. H. C. Delabie. 2010. Ant fauna (Hymenoptera, Formicidae) associated to arboreal nests of Nasutitermes spp. (Isoptera, Termitidae) in a cacao plantation in southeastern Bahia, Brazil. Revista Brasileira de Entomologia 54(3): 450-454.
 * Santschi F. 1916. Descriptions de fourmis nouvelles d'Afrique et d'Amérique. Annales de la Société Entomologique de France 84: 497-513.
 * Santschi F. 1919. Nouveaux formicides de la République Argentine. Anales de la Sociedad Cientifica Argentina. 87: 37-57.
 * Santschi F. 1929. Révision du genre Holcoponera Mayr. Zoologischer Anzeiger. 82: 437-477.
 * Santschi F. 1931. Contribution à l'étude des fourmis de l'Argentine. Anales de la Sociedad Cientifica Argentina. 112: 273-282.
 * Scott-Santos, C.P., F.A. Esteves, C.R.F. Brandao. 2008. Catalogue of "Poneromorph" ant type specimens (Hymenoptera, Formicidae) deposited in the Museu de Zoologia da Universidade de Sao Paulo, Brazil. Papeis Avulsos de Zoologia 48(11):75-88.
 * Silva F. H. O., J. H. C. Delabie, G. B. dos Santos, E. Meurer, and M. I. Marques. 2013. Mini-Winkler Extractor and Pitfall Trap as Complementary Methods to Sample Formicidae. Neotrop Entomol 42: 351358.
 * Silva R. R., R. S. Machado Feitosa, and F. Eberhardt. 2007. Reduced ant diversity along a habitat regeneration gradient in the southern Brazilian Atlantic Forest. Forest Ecology and Management 240: 61-69.
 * 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
 * Silvestre R., M. F. Demetrio, and J. H. C. Delabie. 2012. Community Structure of Leaf-Litter Ants in a Neotropical Dry Forest: A Biogeographic Approach to Explain Betadiversity. Psyche doi:10.1155/2012/306925
 * Smith M. A., W. Hallwachs, D. H. Janzen. 2014. Diversity and phylogenetic community structure of ants along a Costa Rican elevational gradient. Ecography 37(8): 720-731.
 * Soares, S.M. and J.H. Schoereder. 2001. Ant-nest distribution in a remnant of tropical rainforest in southeastern Brazil. Insectes Sociaux 48:280-286
 * Sobrinho T. G., and J. H. Schoereder. 2007. Edge and shape effects on ant (Hymenoptera: Formicidae) species richness and composition in forest fragments. Biodivers Conserv 16: 14591470.
 * Sobrinho T., J. H. Schoereder, C. F. Sperber, and M. S. Madureira. 2003. Does fragmentation alter species composition in ant communities (Hymenoptera: Formicidae)? Sociobiology 42(2): 329-342.
 * Souza D. R. de., T. T. Fernandes, J. R. de Oloveira Nascimento, S. S. Suguituru, and M. S. de C. Morini. 2012. Characterization of ant communities (Hymenoptera Formicidae) in twigs in the leaf litter of the Atlantic rainforest and Eucalyptus trees in the southeast region of Brazil. Psyche 2012(532768): 1-12
 * Souza J. L. P., C. A. R. Moura, A. Y. Harada, and E. Franklin. 2007. Diversity of species of the genera Crematogaster, Gnamptogenys and Pachycondyla, (Hymenoptera: Formicidae) and complementarity of sampling methods during the dry season in an ecological station in the Brazilian state of Pará. Acta Amazonica 37(4): 649-656.
 * Suguituru S. S., D. R. de Souza, C. de Bortoli Munhae, R. Pacheco, and M. S. de Castro Morini. 2011. Diversidade e riqueza de formigas (Hymenoptera: Formicidae) em remanescentes de Mata Atlântica na Bacia Hidrográfica do Alto Tietê, SP. Biota Neotrop. 13(2): 141-152.
 * Suguituru S. S., M. Santina de Castro Morini, R. M. Feitosa, and R. Rosa da Silva. 2015. Formigas do Alto Tiete. Canal 6 Editora 458 pages
 * Suguituru S. S., R. Rosa Silva, D. R. de Souza, C. de Bortoli Munhae, and M. Santina de Castro Morini. Ant community richness and composition across a gradient from Eucalyptus plantations to secondary Atlantic Forest. Biota Neotrop. 11(1): 369-376.
 * Torres, Juan A. and Roy R. Snelling. 1997. Biogeography of Puerto Rican ants: a non-equilibrium case?. Biodiversity and Conservation 6:1103-1121.
 * Ulloa Chacon P., M. L. Baena, J. Bustos, R. C. Aldana, J. A. Aldana, and M. A. Gamboa. 1996. Fauna de hormigas del departamento del Valle del Cauca (Colombia). Pp. 413-451. In Andrade-C M. G., G. Amat Garcia, and F. Fernandez. Insectoss de Colombia, estudios escogidos.
 * Ulyssea M. A., B. C. Lopes, A. Zillidens, J. Steiner. 2007. Ants associated to Nidularium innocentii and Aechmea lindenii (Bromeliaceae) in atlantic rainforest in southern Brazil. Biológico, São Paulo 69(2): 319-324.
 * Ulyssea M. A., and C. R. F. Brandao. 2013. Ant species (Hymenoptera, Formicidae) from the seasonally dry tropical forest of northeastern Brazil: a compilation from field surveys in Bahia and literature records. Revista Brasileira de Entomologia 57(2): 217224.
 * Ulyssea M.A., C. E. Cereto, F. B. Rosumek, R. R. Silva, and B. C. Lopes. 2011. Updated list of ant species (Hymenoptera, Formicidae) recorded in Santa Catarina State, southern Brazil, with a discussion of research advances and priorities. Revista Brasileira de Entomologia 55(4): 603-611.
 * Ulysséa M. A., C. R. F. Brandão. 2013. Ant species (Hymenoptera, Formicidae) from the seasonally dry tropical forest of northeastern Brazil: a compilation from field surveys in Bahia and literature records. Revista Brasileira de Entomologia 57(2): 217-224.
 * Vasconcelos, H.L. and J.M.S. Vilhena. 2006. Species turnover and vertical partitioning of ant assemblages in the Brazilian Amazon: A comparison of forests and savannas. Biotropica 38(1):100-106.
 * Vasconcelos, H.L., J.M.S. Vilhena, W.E. Magnusson and A.L.K.M. Albernaz. 2006. Long-term effects of forest fragmentation on Amazonian ant communities. Journal of Biogeography 33:1348-1356
 * Vasquez-Bolanos M. 2011. Checklist of the ants (Hymenoptera: Formicidae) from Mexico. Dugesiana 18(1): 95-133.
 * Vittar, F. 2008. Hormigas (Hymenoptera: Formicidae) de la Mesopotamia Argentina. INSUGEO Miscelania 17(2):447-466
 * Vittar, F., and F. Cuezzo. "Hormigas (Hymenoptera: Formicidae) de la provincia de Santa Fe, Argentina." Revista de la Sociedad Entomológica Argentina (versión On-line ISSN 1851-7471) 67, no. 1-2 (2008).
 * Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
 * Weber N. A. 1938. New ants from stomachs of Bufo marinus L. and Typhlops reticulatus (L). Ann. Entomol. Soc. Am. 31: 207-210.
 * Weber N. A. 1938. The food of the giant toad, Bufo marinus (L.), in Trinidad and British Guiana with special reference to the ants. Annals of the Entomological Society of America 31: 499-503.
 * Wheeler W. M. 1917. Jamaican ants collected by Prof. C. T. Brues. Bulletin of the Museum of Comparative Zoology 61: 457-471.
 * Wheeler W. M. 1922. The ants of Trinidad. American Museum Novitates 45: 1-16.
 * Wheeler W. M. 1925. Neotropical ants in the collections of the Royal Museum of Stockholm. Arkiv för Zoologi 17A(8): 1-55.
 * Wheeler, William Morton. 1933. Formicidae of the Templeton Crocker Expedition. California Academy of Sciences. 21(6):57-64.
 * Wild, A. L.. "A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)." Zootaxa 1622 (2007): 1-55.
 * Zolessi L. C. de; Y. P. de Abenante, and M. E. Philippi. 1989. Catálogo sistemático de las especies de Formícidos del Uruguay (Hymenoptera: Formicidae). Montevideo: ORCYT Unesco, 40 + ix pp.
 * da Silva R. R., and R. Silvestre. 2000. Diversidade de formigas (Hymenoptera: Formicidae) em Seara, oeste de Santa Catarina. Biotemas 13(2): 85-105.
 * da Silva de Oliveira A. B., and F. A. Schmidt. 2019. Ant assemblages of Brazil nut trees Bertholletia excelsa in forest and pasture habitats in the Southwestern Brazilian Amazon. Biodiversity and Conservation 28(2): 329-344.
 * da Silva, R.R. and R. Silvestre. 2004. Riqueza da fauna de formigas (Hymenoptera: Formicidae) que habita as camadas superficiais do solo em Seara, Santa Catarina. Papéis Avulsos de Zoologia (São Paulo) 44(1): 1-11
 * de Souza D. R., S. G. dos Santos, C. de B. Munhae, and M. S. de C. Morini. 2012. Diversity of Epigeal Ants (Hymenoptera: Formicidae) in Urban Areas of Alto Tietê. Sociobiology 59(3): 703-117.