Pseudomyrmex gracilis [(Fabricius, 1804) ]

Pseudomyrmex gracilis (Fabricius, 1804)

Pseudomyrmex gracilis

External links:

Antweb | Antwiki

Risk statement:

Potentially painful sting, but not considered a significant pest species.

Diagnostic description:

Diagnosis of worker among Antkey species. Head ovoid. Antenna 10-segmented. Antennal club indistinct. Antennal scrobe lacking. Antennal insertion not surrounded by a raised sharp-edged ridge. Antennal scapes do not extend beyond posterior margin of head. Eyes extremely large (approximately half head length); 3 ocelli present. Mandibles triangular. Propodeum lacking spines or teeth. Either bicolored red and black or uniformly black.

Although Pseudomyrmex gracilis has a 2-segmented waist like myrmicines, it is immediately recognizable Among Antkey species by the combination of its enormous eyes and short antennal scapes. It has a wasp-like behavior, frenetically moving its antennae.

2012-10-29 14:08 -- Eli Sarnat

Teks EOL

Taxonomic History:

1 subspecies

gracilis. Formica gracilis Fabricius, 1804: 405 (w.) CENTRAL AMERICA. Wheeler, W.M. & Bailey, 1920: 256 (l.); Wheeler, G.C. & Wheeler, J. 1956: 385 (l.). Combination in Leptalea: Erichson, 1839: 309; in Pseudomyrma: Roger, 1862c: 289; in P. (Clavanoda): Enzmann, E.V. 1944: 61; in Pseudomyrmex: Kusnezov, 1953e: 214. Senior synonym of longinoda: Brown, 1949a: 43; Kempf, 1961a: 370; of variabilis: Ward, 1989: 439; of bicolor, canescens, dimidiata, glabriventris, mexicana, pilosula, sericata, velifera, volatilis and material of the unavailable name guayaquilensis referred here: Ward, 1993: 155; of atrinoda: Wild, 2007b: 55. Current subspecies: nominal plus argentinus. See also: Ward, 1999b: 521.

Lisensi	http://creativecommons.org/licenses/by-nc-sa/1.0/
Pemegang hak/Penulis	Philip S. Ward, AntWeb
Sumber	http://www.antweb.org/description.do?genus=pseudomyrmex&name=gracilis&rank=species

Argentina to Mexico, into many southern states of the US, recently discovered in South Carolina (personal experience)

Lisensi	http://creativecommons.org/licenses/by-nc/3.0/
Pemegang hak/Penulis	Jody Anderson, Jody Anderson
Sumber	No source database.

Taxonomic Treatment:

Wild, A. L., 2007:
Alto Paraguay/ Boquerón , Alto Paraná , Amambay, Caaguazú , Canindeyú , Central, Concepcion, Cordillera, Guairá , Itapúa , Misiones, Ñeembucú , Paraguarí , San Pedro, “Paraguay” (s. loc.) (ALWC, BMNH, IFML, INBP, MCSN, MCZC, MZSP, NHMB, PSWC). Literature records: Caaguazú , Central, Cordillera, “Paraguay”(s. loc.) (Emery 1890b, Emery 1896b, Forel 1907d, Forel 1908b, Forel 1909, Fowler 1981, Santschi 1916, Santschi 1934 [as “ atrinodis ”]).
Formica gracilis Fabricius 1804: 405.
Leptalea gracilis (Fabricius) . Erichson 1839: 309.
Pseudomyrma gracilis (Fabricius) . Roger 1862b: 289.
Pseudomyrma (Clavanoda) gracilis (Fabricius) . Enzmann 1944: 61.
Pseudomyrma gracilis var. atrinoda Santschi 1934: 26. NEW SYNONYMY . [ holotype w examined, NHMB ; Rio Negro , Paraná , Brazil ( Reichensperger )] .
Pseudomyrmex gracilis (Fabricius) . Kusnezov 1953: 214.
Pseudomyrmex gracilis var. atrinoda (Santschi) . Kempf 1958: 434.
Pseudomyrmex gracilis var. atrinodus (Santschi) . Kempf 1972: 219.
Ants in the Pseudomyrmex gracilis species complex are ubiquitous in the neotropics, and the species P. gracilis itself presents a confusing array of variation (Ward 1989). Santschi distinguished his variety P. atrinodus on the basis of small size and light coloration on parts of the mesosoma, but I have examined the type material and in both these characters P. atrinodus is well within the normal range of variation of the species. Phil Ward, who is revising Pseudomyrmex , concurs with this synonymy (Ward, pers comm.)

Lisensi	http://creativecommons.org/licenses/by-nc-sa/1.0/
Pemegang hak/Penulis	Philip S. Ward, AntWeb
Sumber	http://www.antweb.org/description.do?genus=pseudomyrmex&name=gracilis&rank=species

Diagnosis of worker among Antkey species. Head ovoid. Antenna 10-segmented. Antennal club indistinct. Antennal scrobe lacking. Antennal insertion not surrounded by a raised sharp-edged ridge. Antennal scapes do not extend beyond posterior margin of head. Eyes extremely large (approximately half length."" class=""lexicon-term"">head length); 3 ocelli present. Mandibles triangular. Propodeum lacking spines or teeth. Either bicolored red and black or uniformly black.

Although Pseudomyrmex gracilis has a 2-segmented waist like myrmicines, it is immediately recognizable Among Antkey species by the combination of its enormous eyes and short antennal scapes. It has a wasp-like behavior, frenetically moving its antennae.

Lisensi	http://creativecommons.org/licenses/by-sa/3.0/
Pemegang hak/Penulis	Eli Sarnat, Antkey
Sumber	http://antkey.org/content/pseudomyrmex-gracilis-1

Distribution:

Pseudomyrmex gracilis is a widespread New World species, ranging from southern United States to Argentina and Uruguay. It is present as an introduced species in Hawaii and Florida.

Lisensi	http://creativecommons.org/licenses/by-nc-sa/1.0/
Pemegang hak/Penulis	Philip S. Ward, AntWeb
Sumber	http://www.antweb.org/description.do?genus=pseudomyrmex&name=gracilis&rank=species

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Pseudomyrmex gracilis (Fabricius, 1804)

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