Ant

Pseudomyrmex elongatus is a generalist inhabitant of dead twigs of woody plants. It has been collected in mangroves, old fields, along roadsides, and in forested habitats ranging from tropical dry forest to secondary and primary rain forest. Specific nest-site records include dead twigs of Avicennia germinans, Rhizophora mangle, Laguncularia racemosa, Baccharis halimifolia, Baccharis trinervis, Baccharis sp., Ficus spp., Vernonia patens, Terminalia catappa, Tecoma stans, Zanthoxylum culantrillo, Gliricidia sepium, Inga sp., Helicteres sp., Coccoloba sp., and Sapium sp. It has also been recorded nesting in live branches of Pithecellobium saman, Cecropia, Cordia alliodora, and Triplaris cumingiana. Thus, it appears that P. elongatus will occupy ant-plant domatia opportunistically.

Pseudomyrmex elongatus is a widely distributed and common species, occurring from Mexico to Argentina, with an outlying (and possibly introduced) population in Florida. The records of P. elongatus from Texas (Ward, 1985) are in error: they refer to P. caeciliae (see Ward, 1989).

Among members of the oculatus group (see Ward, 1989), workers of elongatus can be recognized by the following combination of features:relatively small size (HW 0.56-0.68)head densely punctate and predominantly opaqueeyes relatively long (REL 0.53-0.59; REL2 0.73-0.82)petiole relatively short (PLI 0.79-1.09), with rounded dorsolateral margination

Pseudomyrma elongata Mayr, 1870a PDF: 413 (w.) COLOMBIA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Wheeler, 1905c PDF: 86 (q.m.); Wheeler & Bailey, 1920 PDF: 260 (l.); Wheeler & Wheeler, 1973d PDF: 207 (l.).Combination in Leptalea: Smith, 1951c PDF: 788.Combination in Pseudomyrmex: Wheeler & Wheeler, 1956 PDF: 384.Status as species: Smith, 1877b PDF: 61; Emery, 1890b PDF: 65; Forel, 1893j PDF: 390; Emery, 1895d PDF: 269; Forel, 1899b PDF: 88; Wheeler, 1905c PDF: 85 (redescription); Forel, 1906d PDF: 228; Forel, 1908a PDF: 65; Wheeler, 1910a PDF: 562; Wheeler, 1911a PDF: 22; Forel, 1911g PDF: 278; Forel, 1912h PDF: 23; Santschi, 1913h PDF: 36; Wheeler, 1913b PDF: 484; Wheeler & Mann, 1914 PDF: 18; Mann, 1916 PDF: 427; Wheeler, 1918b PDF: 24; Mann, 1920b PDF: 405; Emery, 1921c PDF: 32; Wheeler, 1922e PDF: 4; Menozzi, 1927c PDF: 267; Smith, 1930a PDF: 2; Wheeler, 1932a PDF: 4; Wheeler, 1934f PDF: 139; Menozzi, 1935b PDF: 191; Wheeler, 1935g: 16; Wheeler, 1942 PDF: 165; Creighton, 1950a PDF: 79; Smith, 1951c PDF: 788; Creighton, 1957b PDF: 18; Smith, 1958c PDF: 112; Wilson, 1964b PDF: 4; Smith, 1967a PDF: 348; Kempf, 1972b PDF: 217; Kempf & Lenko, 1976 PDF: 62; Smith, 1979: 1346; Ward, 1985b PDF: 227 (redescription); Ward, 1989a PDF: 419 (redescription); Deyrup et al., 1989 PDF: 94; Brandão, 1991 PDF: 375; Ward, 1992 PDF: 81 (in table); Bolton, 1995b: 372; Ward, 1999b PDF: 519 (redescription); Deyrup, 2003 PDF: 46; Wild, 2007b PDF: 40; Branstetter & Sáenz, 2012 PDF: 264; Bezděčková et al., 2015 PDF: 125; Deyrup, 2017: 41; Ward, 2019 PDF: 1103.Senior synonym of Pseudomyrmex allidora: Ward, 1989a PDF: 419; Brandão, 1991 PDF: 376; Bolton, 1995b: 372.Senior synonym of Pseudomyrmex alliodorae: Ward, 1989a PDF: 419; Brandão, 1991 PDF: 376; Bolton, 1995b: 372.Senior synonym of Pseudomyrmex elongata tandem: Creighton, 1957b PDF: 18; Kempf, 1972b PDF: 218; Smith, 1979: 1346; Ward, 1985b PDF: 227; Ward, 1989a PDF: 419; Bolton, 1995b: 372.

Canindeyú , Central, Ñeembucú , Pte. Hayes, San Pedro (ALWC, IFML, INBP).

Pseudomyrmex elongatus is a species of ant in the family Formicidae.

This is widely spread and common species from Mexico to Argentina. Long eyes, predominantly opaque head, small size (HW 0.56-0.68) these are some features of P. elongatus.