Labidus coecus

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Labidus coecus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Dorylinae
Genus: Labidus
Species: L. coecus
Binomial name
Labidus coecus
(Latreille, 1802)

Labidus coecus casent0173511 profile 1.jpg

Labidus coecus casent0173511 dorsal 1.jpg

Specimen Label

Synonyms

A New World subterranean army ant with an extensive geographic range. The range of L. coecus appears to be essentially continuous, from Buenos Aires, Argentina in the south (~34.6°S) to Delaware County, Oklahoma in the north (~36.6°N). The three West Indian islands with L. coecus populations are all continental shelf islands that were connected to South America during periods of lower sea levels a few thousand years ago, so L. coecus populations on these islands have only recently become isolated. Labidus coecus commonly nests in caves, a microhabitat that may allow it to live in regions with otherwise inhospitable climates. Although recent papers listed L. coecus as an exotic species in North America, we found no evidence that L. coecus is exotic to any part of its known range. (Wetterer and Snelling 2015)


At a Glance • Ergatoid queen  

 

Identification

Distribution

Wetterer and Snelling (2015) - L. coecus has been reported from 20 countries in Central and South America (all except Chile), three West Indian islands (Margarita, Trinidad, and Tobago), and four US states (Arkansas, Louisiana, Oklahoma, and Texas). The range of L. coecus appears to be essentially continuous, from Buenos Aires, Argentina in the south (~34.6°S) to Delaware County, Oklahoma in the north (~36.6°N).

Distribution based on Regional Taxon Lists

Nearctic Region: United States.
Neotropical Region: Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, Uruguay, Venezuela.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Baudier et al. (2015) studied thermal tolerances of a variety of army ant workers. Labidus coecus was one of two army ant species sampled that are strictly subterranean, i.e. both bivouac and raid underground.

Castes

Primarily wingless queen described in Weber 1941

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • coecus. Formica coeca Latreille, 1802c: 270, pl. 9, fig. 56 (s.) CENTRAL AMERICA. Roger, 1861a: 22 (w.); Emery, 1895c: 258 (m.); Bruch, 1934b: 116 (q.); Weber, 1941c: 325 (q.); Wheeler, G.C. 1943: 332 (l.). Combination in Labidus: Jurine, 1807: 282; in Nycteresia: Roger, 1861a: 22; in Eciton: Mayr, 1886b: 119; in Eciton (Labidus): Santschi, 1924b: 11; in Labidus: Borgmeier, 1955: 86. Senior synonym of vastator: Mayr, 1865: 78; Borgmeier, 1955: 86; of jurinii: Mayr, 1886a: 33; Borgmeier, 1953: 15; of erratica: Mayr, 1886b: 119; Borgmeier, 1955: 86; of latreillii, rubra, saji: Emery, 1895c: 258; Borgmeier, 1955: 86; of atriceps: Emery, 1900a: 186; Borgmeier, 1955: 86; of incerta: André, in Forel, 1899c: 160; Emery, 1900a: 186; Borgmeier, 1955: 86; of fulvescens: Emery, 1910b: 22; Borgmeier, 1955: 86; of pilosus, smithii: Santschi, 1913h: 35; Borgmeier, 1955: 86; of grassator: Borgmeier, 1923: 41; of panzeri, biloba, elsbethae, servillei, opacifrons: Borgmeier, 1953: 16, 16, 16, 17, 19, repectively; of nigrita, kulowi, selysi, serpentis: Borgmeier, 1955: 86; material of the unavailable name hostilis referred here by Borgmeier, 1953: 14. See also: Gallardo, 1920: 326; Wheeler, G.C. & Wheeler, J. 1984: 272; Watkins, 1976: 8.
  • latreillii. Labidus latreillii Jurine, 1807: 283 (m.) SURINAM. Combination in Eciton: Dalla Torre, 1893: 4. Junior synonym of coecus: Emery, 1895c: 258; Borgmeier, 1955: 86.
  • jurinii. Labidus jurinii Shuckard, 1840a: 198 (m.) GUYANA. Combination in Eciton: Dalla Torre, 1893: 4. Subspecies of coecus: Emery, 1910b: 22; Forel, 1912c: 43; Gallardo, 1920: 332. Junior synonym of coecus: Mayr, 1886a: 33; Borgmeier, 1953: 15; Borgmeier, 1955: 86.
  • servillei. Labidus servillei Westwood, 1842: 75, pl. 20, fig. 2 (m.) BRAZIL. Combination in Eciton: Dalla Torre, 1893: 4. Subspecies of latreillii: Dalla Torre, 1893: 4; of coecus: Forel, 1912c: 43; Santschi, 1920d: 368. Junior synonym of coecus: Borgmeier, 1953: 17.
  • fulvescens. Mutilla (Labidus) fulvescens Blanchard, 1846, pl. 118, fig. 2 (m.) BRAZIL. Combination in Eciton: Dalla Torre, 1893: 2. Junior synonym of coecus: Emery, 1910b: 22; Borgmeier, 1955: 86.
  • saji. Labidus saji Haldeman, 1852: 367, pl. 9, figs. 1-3 (m.) U.S.A. [Spelling emended to sayi by Roger, 1863b: 42, repeated by all later authors.] Combination in Eciton (Labidus): Mayr, 1886d: 440. Subspecies of servillei: Emery, 1890b: 39; of latreillii: Dalla Torre, 1893: 4. Junior synonym of coecus: Emery, 1895c: 258. Revived from synonymy as subspecies of coecus: Santschi, 1923g: 1261. Junior synonym of coecus: Borgmeier, 1955: 86.
  • atriceps. Labidus atriceps Smith, F. 1859b: 5 (m.) BRAZIL. Junior synonym of coecus: Emery, 1900a: 186; Borgmeier, 1955: 86.
  • panzeri. Labidus panzeri Smith, F, 1859b: 71, pl. 2, fig. 2 (m.) COLOMBIA. Junior synonym of coecus: Borgmeier, 1953: 16.
  • pilosus. Labidus pilosus Smith, F. 1859b: 7 (m.) BRAZIL. Junior synonym of coecus: Santschi, 1913h: 35; Borgmeier, 1955: 86.
  • erratica. Eciton erratica Smith, F. 1860c: 71 (w.) BRAZIL. Junior synonym of coecus: Mayr, 1886b: 119; Borgmeier, 1955: 86.
  • vastator. Eciton vastator Smith, F. 1860c: 71 (w.) BRAZIL. Junior synonym of coecus: Mayr, 1865: 78; Borgmeier, 1955: 86.
  • rubra. Myrmica rubra Buckley, 1867: 335 (w.) U.S.A. Junior synonym of coecus: Emery, 1895c: 258; Borgmeier, 1955: 86.
  • incerta. Pseudodichthadia incerta André, 1885: 840, figs. 1-5 (q.) MEXICO. Junior synonym of coecus: André, in Forel, 1899c: 160; Emery, 1900a: 186; Borgmeier, 1955: 86.
  • smithii. Eciton smithii Dalla Torre, 1892: 89. [Unnecessary replacement name for Labidus pilosus Smith, F. 1859b: 7.] Junior synonym of coecus: Santschi, 1913h: 35.
  • biloba. Eciton coecum var. biloba Emery, 1901d: 51 (m.) ECUADOR. Junior synonym of coecus: Borgmeier, 1953: 16.
  • kulowi. Eciton coecum r. kulowi Forel, 1901h: 47 (m.) MEXICO. Junior synonym of coecus: Borgmeier, 1955: 86.
  • nigrita. Eciton nigrita Emery, 1901d: 52, fig. 5 (m.) GUATEMALA. Combination in E. (Labidus): Emery, 1910b: 23; in Labidus: Borgmeier, 1953: 6. Subspecies of praedator: Santschi, 1925b: 11; of coecus: Borgmeier, 1953: 6. Junior synonym of coecus: Borgmeier, 1955: 86.
  • selysi. Eciton selysi Forel, 1904d: 169 (w.) BRAZIL. Combination in Labidus: Borgmeier, 1953: 8. Subspecies of coecus: Forel, 1905b: 157; Santschi, 1923g: 1260. Junior synonym of coecus: Borgmeier, 1955: 86.
  • grassator. Eciton grassator Forel, 1911c: 288 (w.) BRAZIL. Subspecies of coecus: Forel, 1911d: 396 (footnote); Santschi, 1923g: 1260; Wheeler, W.M. 1925b: 2. Junior synonym of coecus: Borgmeier, 1923: 41.
  • opacifrons. Eciton (Labidus) coecum var. opacifrons Wheeler, W.M. 1921d: 310 (w.) BRAZIL. Junior synonym of coecus: Borgmeier, 1953: 19.
  • elsbethae. Eciton (Labidus) coecum var. elsbethae Forel, 1922: 91 (m.) COLOMBIA. Junior synonym of coecus: Borgmeier, 1953: 16.
  • serpentis. Eciton (Labidus) serpentis Weber, 1938a: 209 (w.) GUYANA. Junior synonym of coecus: Borgmeier, 1955: 86.

Description

References

  • Baudier, K. M., A. E. Mudd, S. C. Erickson, and S. O'Donnell. 2015. Microhabitat and body size effects on heat tolerance: implications for responses to climate change (army ants: Formicidae, Ecitoninae). Journal of Animal Ecology. 84:1322-1330. doi:10.1111/1365-2656.12388
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References based on Global Ant Biodiversity Informatics

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