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Species: Cephalotes pallens   (Klug, 1824) 

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Current Valid Name:

Taxonomic History (provided by Barry Bolton, 2022)

Cryptocerus pallens Klug, 1824 PDF: 206 (w.) BRAZIL. Neotropic. Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Brazil: (no further data (“sent by Swainson”). Primary type depository: MNHU. AntCat AntWiki HOL

Taxonomic history

Emery, 1894d PDF: 212 (s.q.); Emery, 1896h PDF: 635 (m.); Wheeler & Wheeler, 1973b PDF: 79 (l.)
Combination in Zacryptocerus: Brandão, 1991 PDF: 387.
Status as species: Guérin-Méneville, 1844a PDF: 426; Smith, 1853 PDF: 218; Smith, 1858a PDF: 192; Smith, 1862d PDF: 411; Mayr, 1863a PDF: 406; Roger, 1863b PDF: 38; Dalla Torre, 1893 PDF: 143; Emery, 1894d PDF: 212; Forel, 1895b PDF: 134; Emery, 1896h PDF: 635; Forel, 1899b PDF: 51; Forel, 1909a PDF: 257; Forel, 1911g PDF: 257; Emery, 1924f PDF: 311; Borgmeier, 1927c PDF: 119; Menozzi, 1927c PDF: 268; Wheeler, 1942 PDF: 209; Kempf, 1958a: 150 (redescription); Kempf, 1972b PDF: 179; Brandão, 1991 PDF: 387; Bolton, 1995b: 426; De Andrade & Baroni Urbani, 1999 PDF: 493 (redescription); Branstetter & Sáenz, 2012 PDF: 257; Guénard & Economo, 2015 10.11646/zootaxa.4040.2.8: 227; Sandoval-Gómez & Sánchez-Restrepo, 2019 PDF: 912; Oliveira et al., 2021 10.1590/1806-9665-RBENT-2021-0028 PDF: 34 (in list).
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Argentina, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Grenada, Guatemala, Guyana, Haiti, Honduras, Mexico, Nicaragua, Panama, Peru, Saint Vincent and the Grenadines, Suriname, Trinidad and Tobago, Venezuela
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Mexico to Brazil (Kempf 1958). Costa Rica: seasonally dry portions of Guanacaste and Puntarenas Provinces.


Natural History:

This species prefers dry forest or scrubby habitats. It nests in live or dead stems. I have the following nest collections:

Nest in dead stick.

A sprawling vine had soft pith and was commonly inhabited by ants. A series of nest collections made, all from live stems.

Small treefall that had been down long enough for leaves to be dry and brown. Nest in hard dead wood.


Andrade, M. L. de, and C. Baroni Urbani. 1999. Diversity and adaptation in the ant genus Cephalotes, past and present (Hymenoptera, Formicidae). Stuttgarter Beitrage zur Naturkunde Serie B (Geologie und Palaontologie) 271:1-889.

Kempf, W. W. 1958. New studies of the ant tribe Cephalotini (Hym. Formicidae). Stud. Entomol. (n.s.)1:1-168.

Klug, F. 1824. Entomologische Monographien. Berlin: Reimer, 242 pp.

Specimen Habitat Summary

Found most commonly in these habitats: 4 times found in dry forest, 1 times found in 2nd growth seasonal dry forest, 1 times found in secondgrowth dry forest, 1 times found in moist forest, 3 times found in tropical rainforest, 1 times found in moist forest and second growth veg., 1 times found in edge of mangrove, 1 times found in isolated tree in pasture, 1 times found in seasonally dry scrubby vegetation, 2 times found in Secondary forest in city park, ...

Found most commonly in these microhabitats: 1 times nest in dead vine stem, 3 times on low vegetation, 3 times nest in twig above ground, 1 times nest in dead stick, 1 times nest in dead branch treefall, 1 times in dead stick, 3 times dead twig above ground, 1 times nocturnal foragers, 2 times nest in twig, brood in nest, 1 times nest in dead acacia tree, 1 times ex live stems sprawling vine, ...

Collected most commonly using these methods: 8 times search, 2 times Beating, 1 times miniWinkler, 1 times sweep, 1 times beating low vegetation, 1 times beating vegetation (2 hours), 45-3 times beating vegetation, 2.

Elevations: collected from 5 - 1207 meters, 264 meters average

Collect Date Range: collected between 1940-12-30 00:00:00.0 and 2018-09-02 00:00:00.0

Type specimens: Holotype of Cryptocerus araneolus: casent0900252; syntype of Cryptocerus discocephalus: casent0919602; syntype of Cryptocerus varians marginata: casent0904929; type of Cryptocerus pallens: focol2147

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