Neivamyrmex pilosus (Smith 1858)

Paraguay: Canindeyú, Cordillera, Paraguarí

Eciton pilosa Smith, 1858a PDF: 151 (w.) BRAZIL. Neotropic. AntCat AntWiki HOL

Taxonomic history

Reichensperger, 1939 PDF: 297 (q.); Smith, 1942c PDF: 544 (m.); Wheeler, 1943 PDF: 331 (l.); Wheeler & Wheeler, 1984a PDF: 273 (l.).Combination in Eciton (Acamatus): Emery, 1894d PDF: 183 (in key).Combination in Eciton (Neivamyrmex): Smith, 1942c PDF: 544.Combination in Neivamyrmex: Borgmeier, 1953 PDF: 8.Status as species: Mayr, 1863a PDF: 409; Roger, 1863b PDF: 36; Mayr, 1865 PDF: 77 (in key); Mayr, 1886b PDF: 120 (in key); Emery, 1890c PDF: 39; Dalla Torre, 1893 PDF: 5; Emery, 1894d PDF: 183 (in key); Emery, 1894l PDF: 45; Forel, 1895b PDF: 120; Forel, 1899b PDF: 27; Forel, 1908 PDF: 347; Wheeler, 1908h PDF: 412; Emery, 1910b PDF: 25; Wheeler, 1910a PDF: 562; Forel, 1912d PDF: 45; Mann, 1916 PDF: 422; Wheeler, 1916f PDF: 324; Crawley, 1916b PDF: 368; Luederwaldt, 1918 PDF: 37; Wheeler, 1921d PDF: 312; Wheeler, 1922e PDF: 1; Borgmeier, 1923: 48; Smith, 1931b PDF: 296; Borgmeier, 1934 PDF: 94; Eidmann, 1936a PDF: 32; Smith, 1938b PDF: 158; Smith, 1942c PDF: 544 (redescription); Creighton, 1950a PDF: 75; Smith, 1951c PDF: 781; Borgmeier, 1955 PDF: 361 (redescription); Kempf, 1970c PDF: 324; Watkins, 1971 PDF: 94 (in key); Kempf, 1972b PDF: 158; Watkins, 1972 PDF: 348 (in key); Watkins, 1976 PDF: 16 (in key); Watkins, 1982 PDF: 210 (in key); Watkins, 1985 PDF: 481 (in key); Wheeler & Wheeler, 1986g PDF: 19 (in key); Bolton, 1995b: 290; Palacio, 1999: 157 (in key); Mackay & Mackay, 2002 PDF: 63; Wild, 2007b PDF: 26; Snelling & Snelling, 2007 PDF: 488.Senior synonym of Neivamyrmex aztecum: Snelling & Snelling, 2007 PDF: 488.Senior synonym of Neivamyrmex pilosus angustius: Borgmeier, 1955 PDF: 361; Kempf, 1972b PDF: 158; Bolton, 1995b: 290; Snelling & Snelling, 2007 PDF: 489.Senior synonym of Neivamyrmex pilosus beebei: Snelling & Snelling, 2007 PDF: 489.Senior synonym of Neivamyrmex clavicornis: Snelling & Snelling, 2007 PDF: 488.Senior synonym of Neivamyrmex pilosus militarium: Snelling & Snelling, 2007 PDF: 489.Senior synonym of Neivamyrmex porrectognathum: Borgmeier, 1955 PDF: 361; Kempf, 1972b PDF: 158; Bolton, 1995b: 290; Snelling & Snelling, 2007 PDF: 489.Senior synonym of Neivamyrmex subsulcatum: Snelling & Snelling, 2007 PDF: 488.

Figures 13 a-b, 44, 59, 72, 86, 1110, 111, 121, 135, 146, 150, 151

Eciton pilosa F. Smith , 1858: 151 (w). BRAZIL , Amazonas , Vila Nova ( BMNH ) .

Eciton clavicornis Norton , 1868: 46 (w). MEXICO, Vera Cruz, Hacienda Potrero (types lost?).

Eciton pilosum : Mayr, 1865: 77; 1886: 120. Dalla Torre, 1893: 5.

Eciton (Labidus) subsulcatum Mayr , 1887: 440 (m). U. S. A., Texas (NHMV).

Eciton mexicanus : Dalla Torre, 1893: 4. Forel, 1899: 27.

Eciton (Acamatus) pilosum : Emery, 1894 a: 183. Emery, 1900 a: 524; Emery, 1910: 25. Borgmeier, 1923, 48. Borgmeier, 1934: 94. Wheeler, G. C., 1943: 331 (larva).

Eciton (Labidus) mexicanum : Emery, 1895 b: 260. Emery, 1896 a: 33. Misidentification

Eciton pilosum : Forel, 1899: 27. Wheeler & Long, 1901: 165.

Eciton (Acamatus) mexicanum : Emery, 1900 a: 515, 525. Emery, 1910: 26. Wheeler, 1908: 414. M. R. Smith, 1931: 16.

Eciton aztecum Forel , 1901: 49 (m). GUATEMALA , San Jose ( MHNG ) .

Eciton (Acamatus) pilosum : Wheeler, 1908: 412. Wheeler, 1921: 313. M. R. Smith, 1924: 85; M. R. Smith, 1931: 295. Reichensperger, 1939: 297 (q).

Eciton (Acamatus) pilosum var. angustius Forel , 1909: 256 (w). PARAGUAY , San Bernardino ( MHNG ) .

Emery, 1910: 25. Wheeler, 1921: 312. Eciton (Acamatus) mexicanum var. azteca : Emery, 1910: 26. Eciton (Acamatus) pilosum var. beebei Wheeler , 1921: 312 (w, m). GUYANA, Kartabo (MCZC). NEW

SYNONYMY. Eciton (Acamatus) pilosum var. aztecum : Wheeler, 1921: 314. Eciton (Labidus) spininodis subsp. militarium Santschi , 1929: 85 (w). PANAMA, Bocas del Toro,

Changuinola (BASEL). Borgmeier, 1953: 14. Eciton (Acamatus) porrectognathum Borgmeier , 1933 b: 167 (m). BRAZIL, Rio de Janeiro, Angra dos

Reis u. Itatiaia (?). Eciton (Acamatus) pilosum var. mexicanum : Borgmeier, 1936: 59. Borgmeier, 1939 a: 416.

Misidentification

Eciton (Neivamyrmex) pilosum : M. R. Smith, 1942: 544. Creighton, 1950: 75.

Neivamyrmex pilosus porrectognathum : Borgmeier, 1953: 5. BRAZIL, Angra dos Reis and Itatiaia (IBVB).

Neivamyrmex pilosus mexicanus : Borgmeier, 1953: 17. Misidentification

Neivamyrmex pilosus beebei : Borgmeier, 1953: 19.

Neivamyrmex pilosus : Borgmeier, 1955: 361 - 373 (w, q, m).

Neivamyrmex pilosus subsp. beebei : Borgmeier, 1955: 373 (w, m).

Neivamyrmex pilosus subsp. mexicanus : Borgmeier, 1955: 374 (w, q, m). Watkins, 1976: 16. Watkins,

1982: 197 - 247. Watkins, 1985: 479 - 502. Misidentification

DISTRIBUTION (Map. 2)

UNITED STATES: Arkansas and Mississippi west to southern Arizona; MEXICO: border states south to Chiapas; south to BRAZIL and PARAGUAY.

SPECIMENS EXAMINED

We have 56 records of this wide-ranging species in the United States.

DISCUSSION

The male type of Labidus mexicanus , described from Orizaba, Mexico by F. Smith (1859), has been examined. It is a specimen of N. swainsonii (Shuckard) , not a form of N. pilosus . Accordingly, L. mexicanus is removed to the synonymy of that species.

We have examined both males and workers from throughout the extensive range of this species. We have found that the features distinguishing the several recognized subspecies form a continuum from north to south, with no clear demarcation for any of these features. Accordingly, all these are here placed in synonymy.

Watkins (1985) indicated on his map of the distribution of N. pilosus mexicanus that this ant had been collected from California. We have examined the specimens, purportedly collected at Exeter, Tulare County, and concur that they are N. pilosus . However, it is our opinion that these males are probably incorrectly labeled and we have not included California within the distribution of N. pilosus .

Automontage images of the worker caste (as N. pilosus mexicanus ) are located at antweb. org.

Canindeyú , Cordillera, Paraguarí , “ Paraná R.” (Dept. unkown), “Paraguay” (s. loc.) (ALWC, LACM, MCZC, MHNG, MZSP, NHMB). Literature records: Cordillera, “Paraguay” (s. loc.) (Borgmeier1955, Emery 1894a, Forel 1895, Forel 1909).

Neivamyrmex pilosus is a species of army ant in the family Formicidae.