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Species: Pheidole radoszkowskii   Mayr, 1884 

Download Data

Taxonomic History (provided by Barry Bolton, 2020)

Pheidole radoszkowskii Mayr, 1884 PDF: 35 (s.w.) FRENCH GUIANA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Senior synonym of Pheidole australis: Wilson, 2003a: 221.
Senior synonym of Pheidole medialis: Longino, 2009 PDF: 70.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Argentina, Bolivia, Brazil, Colombia, Costa Rica, El Salvador, French Guiana, Guyana, Honduras, Jamaica, Nicaragua, Panama, Paraguay, Saint Vincent and the Grenadines
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Widespread in Neotropics, including Jamaica and parts of Lesser Antilles. Costa Rica: Pacific lowlands and central valley.


Natural History:

This species occurs in open, recently disturbed habitats. Nests are beneath dead wood on the ground. Workers forage on the ground and in low vegetation.


The type locality of Forel's plebecula is Alajuela. He described it as being very similar to radoszkowskii var. acuta, which Wilson (2003) synonymized with radoszkowskii. Wilson was not able to locate the type of plebecula.


Wilson, E. O. 2003. Pheidole in the New World: A Dominant, Hyperdiverse Ant Genus. Harvard University Press, Cambridge, Mass

Taxonomic Treatment (provided by Plazi)

Scientific Name Status Publication Pages ModsID GoogleMaps
Pheidole radoszkowskii   Forel, A., 1908, Fourmis de Costa-Rica, récoltées par M. Paul Biolley., Bulletin de la Societe Vaudoise des Sciences Naturelles 44, pp. 35-72: 52, (download) 52 4014
Pheidole radoszkowskii   Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press: 221-222, (download) 221-222 20017
Pheidole radoszkowskii   Forel, A., 1893, Formicides de l'Antille St. Vincent. Récoltées par Mons. H. H. Smith., Transactions of the Entomological Society of London 1893, pp. 333-418: 406, (download) 406 3948
Pheidole radoszkowskii n. sp.  Radoszkowsky, O., 1884, Fourmis de Cayenne Française., Trudy Russkago Entomologicheskago Obshchestva 18, pp. 30-39: 35-36, (download) 35-36 1929
Pheidole radoszkowskii   Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55: 35, (download) 35 21367
Pheidole radoszkowskii   Longino, J. T., 2009, Additions to the taxonomy of New World Pheidole (Hymenoptera: Formicidae)., Zootaxa 2181, pp. 1-90: 70, (download) 70 22820

Specimen Habitat Summary

Found most commonly in these habitats: 8 times found in beach, 8 times found in coastal scrub, 7 times found in dry forest, 5 times found in mature secondary forest along dry creek, 2 times found in 2nd growth dry forest, 2 times found in wet forest, 2 times found in montane wet forest, 4 times found in Ficus-Tabebuia-Morisonia, dry forest, 4 times found in beach enclosure, 1 times found in pasture, ...

Found most commonly in these microhabitats: 6 times at bait, 9 times under stone, 7 times ground forager, 5 times ex soil, 2 times ex sifted leaf litter, 1 times on ground, 1 times ground nest, 1 times under rock, 1 times nest under rock, 1 times nest beneath a board on the ground, 2 times leaf litter dweller, ...

Collected most commonly using these methods: 28 times hand collection, 7 times search, 4 times bait, 3 times Winkler, 1 times direct collection, 4 times 30 x 30 cm winkler (litter + 2 cm of soil), 1 times baiting, 1 times Berlese, 2 times pitfall, 1 times Malaise, 1 times sweep, ...

Elevations: collected from 10 - 1650 meters, 292 meters average

Collect Date Range: collected between 1979-02-24 and 2017-05-28

Type specimens: holotype major Pheidole medialis: inbiocri002279650; Lectotype of Pheidole radowszkowskii australis: casent0904322; Lectotype Pheidole radoszkowskii: casent0601266; Paralectotype Pheidole radoszkowskii: casent0601267, casent0601268; syntype of Pheidole radoszkowskii Mayr reflexans: casent0916960, casent0916961; syntype of Pheidole radoszkowskii parvinoda: casent0901471, casent0916620; syntype of Pheidole radoszkowskii luteola: casent0908104, casent0908105; syntype of Pheidole radoszkowskii opacissima: casent0908106, casent0908107; syntype of Pheidole radoszkowskii parvinoda: casent0908111, casent0908112; syntype of Pheidole radoszkowskii parvinoda erubens: casent0908113, casent0908114; syntype of Pheidole radowszkowskii acuta: casent0904320, casent0904321; syntype of Pheidole triconstricta paranana: casent0913465, casent0913466; type of Pheidole radoszkowskii var. acuta: focol1430

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