Pheidole socrates

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Pheidole socrates
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. socrates
Binomial name
Pheidole socrates
Forel, 1912

Pheidole socrates casent0908091 p 1 high.jpg

Pheidole socrates casent0908091 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of socrates.


See the description in the nomenclature section.

Keys including this Species


Amazonian Brazil to the Guianas (French Guiana, Guyana, Suriname). Kempf (1972b) records socrates from Trinidad, but I have not seen the specimens. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality), French Guiana, Guyana, Suriname.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb






The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • socrates. Pheidole biconstricta r. socrates Forel, 1912f: 223 (s.w.) BRAZIL. Raised to species: Wilson, 2003: 149.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.


From Wilson (2003): A large, light reddish yellow member of the biconstricta group, possessing spines in major and minor. In the major, also, longitudinal carinulae of frontal lobes extend in attenuated form posteriorly to near the occipital border. In the minor, the occiput is exceptionally broad in full-face view.

Otherwise, close to Pheidole biconstricta and Pheidole plato.

MEASUREMENTS (mm) Lectotype major: HW 1.84, HL 1.80, SL 1.10, EL 0.26, PW 0.88. Paralectotype minor: HW 0.88, HL 0.94, SL 1.08, EL 0.10, PW 0.56.

COLOR Major and minor: concolorous light reddish yellow.

Pheidole socrates Wilson 2003.jpg

Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.

Lectotype Specimen Labels

Type Material

BRAZIL: Belém. Musee d'Histoire Naturelle Genève - as reported in Wilson (2003)


L socrates, presumably after the philosopher. (Wilson 2003)


  • Forel, A. 1912g. Formicides néotropiques. Part III. 3me sous-famille Myrmicinae (suite). Genres Cremastogaster et Pheidole. Mém. Soc. Entomol. Belg. 19: 211-237 (page 223, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 149, fig. Raised to species: new status)

References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Forel A. 1912. Formicides néotropiques. Part III. 3me sous-famille Myrmicinae (suite). Genres Cremastogaster et Pheidole. Mémoires de la Société Entomologique de Belgique. 19: 211-237.
  • Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • Lapolla, J. S., and S. P. Cover. "New species of Pheidole (Hymenoptera : Formicidae) from Guyana, with a list of species known from the country." Transactions of the American Entomological Society 131, no. 3-4 (2005): 365-374.
  • Wheeler W. M. 1922. The ants of Trinidad. American Museum Novitates 45: 1-16.