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Genus: Eciton


Taxonomic History (provided by Barry Bolton, 2014)

12 species, 17 subspecies

Eciton Latreille, 1804: 179. Type-species: Formica hamata, by subsequent designation of Shuckard, in Swainson & Shuckard, 1840: 173. AntCat AntWiki

Taxonomic history

Genus Eciton references
Smith, 1858a PDF: 148 (diagnosis); Roger, 1863b: 36 (catalogue); Mayr, 1863a PDF: 408 (catalogue); Mayr, 1865: 17, 77 (diagnosis, all species key); Mayr, 1886a PDF: 115 (all species key); Dalla Torre, 1893 PDF}: 1 (catalogue); Emery, 1900e: 176 (all species, males key); Emery, 1910b PDF: 17 (diagnosis, subgenera key, catalogue); Gallardo, 1920 PDF: 312 (Argentina species key); Borgmeier, 1955 PDF: 162, 175 (diagnosis, all species revision, key); Kempf, 1972b PDF: 101 (Neotropical catalogue); Watkins, 1976 PDF}: 9 (all species key); Watkins, 1982 PDF}: 209 (Mexico species key); Billen, 1986b: 170 (Dufour's gland); Brandão, 1991 PDF: 341 (catalogue); Bolton, 1995a PDF: 1049 (census); Bolton, 1995b: 184 (catalogue); Palacio, 1999: 151 (Colombia species key).

Taxon Page Images:

Eciton burchellii bivouac. These army ants form living nests from their own bodies. Maquipucuna reserve, Pichincha, Ecuador.
Image © Alex Wild.


Key to species based on males (translated and adapted from Borgmeier 1955 by B.E. Boudinot)

1 Mandibular apex truncate and rounded ... E. jansoni
- Mandibular apex pointed ...2
2 Mandibles broadest in basal third (mandibles appearing narrow) ... 3
- Mandibles broades in apical half (mandibles appearing broad) ... 5
3 Mandibles more or less straight (and very thin) ... E. burchelli
- Mandibles bent basally ... 4
4 Mandibles long, apical tooth almost straight ... E. dulcius
- Mandibles shorter, apical tooth curved inwards ... E. quadriglurne
5 Subapical tooth small; apical tooth slightly bent ... 6
- Subapical tooth very large; apical tooth bent, hook-shaped ... 8
6 Metasoma with erect bristles ... 7
- Metasoma without erect bristles ... E. vagans
7 Scape with standing setae. Body reddish or rusty yellow; abdominal tergites 3-5 with scattered standing setae ... E. hamatum
- Scape without standing setae. Body blackish brown; tergites 3-5 with setae restricted to a band ... E. setigaster
8 Area between subapical and apical teeth straight ... E. uncinatum
- Area between subapical and apical teeth with broad concavity subtending apical tooth ... E. mexicanum


Borgmeier, T. 1955. Die Wanderameisen der neotropischen Region. Studia Entomologica 3:1-720.

Taxon Page Author History

On 2013-10-22 14:01:59 Brendon Boudinot modified References
On 2013-10-22 13:59:44 Brendon Boudinot modified Identification
On 2013-08-22 05:24:22 Zach Lieberman modified Images
On 2013-08-22 05:23:36 Zach Lieberman modified Images

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