Pheidole cordiceps

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Pheidole cordiceps
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. cordiceps
Binomial name
Pheidole cordiceps
Mayr, 1868

Pheidole cordiceps casent0281740 p 1 high.jpg

Pheidole cordiceps casent0281740 d 1 high.jpg

Specimen Labels


Nothing is known about the biology of cordiceps.


See the description in the nomenclature section.

Keys including this Species


Argentina: widespread in the country, including Buenos Aires, Chabut, Córdoba, Mendoza, and Salta (Kempf 1972b).

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb







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

  • cordiceps. Pheidole cordiceps Mayr, 1868b: 174 (s.w.) ARGENTINA. Emery, 1906c: 149 (q.). Senior synonym of lilianae: Wilson, 2003: 279.
  • lilianae. Pheidole cordiceps var. lilianae Forel, 1912f: 232 (s.w.q.m.) ARGENTINA. Subspecies of cordiceps: Kusnezov, 1952b: 66 (in key). Junior synonym of cordiceps: Wilson, 2003: 279.

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 medium-sized, yellow member of the fallax group, distinguished as follows:

Major: head heart-shaped; propodeal spines reduced to denticles; postpetiolar node seen from above roughly trapezoidal; mesonotal convexity prominent, and in dorsal-oblique view seeming to “lean” posteriorly; carinulae on frontal lobes restricted to lateral halves, and rest of cephalic sculpturing confined to the level of the eyes and capsule anterior to them.

Minor: occiput very broad, lacking nuchal collar; humerus angulate; sculpturing on head limited to anterior fourth of dorsal surface.

Most similar to and possibly synonymous with Pheidole dione.

MEASUREMENTS (mm) Lectotype major: HW 1.44, HL 1.46, SL not measured, EL 0.22, PW 0.72. Paralectotype minor: HW 0.70, HL 0.74, SL 0.86, EL 0.16, PW 0.42.

COLOR Major: medium yellow, gaster a slightly contrasting yellowish brown.

Minor: head and mesosoma reddish yellow, waist and gaster medium brown.

Pheidole cordiceps Wilson 2003.jpg

Figure. Upper: lectotype, major (antennal scape drawn from an undamaged paralectotype major). Lower: paralectotype, minor. Scale bars = 1 mm.

Type Material

ARGENTINA: Buenos Aires, col. P. de Strobel. Naturhistorisches Museum Wien, Vienna - as reported in Wilson (2003)


L cordiceps, heart-shaped head. (Wilson 2003)


  • Emery, C. 1906c [1905]. Studi sulle formiche della fauna neotropica. XXVI. Bull. Soc. Entomol. Ital. 37: 107-194 (page 149, queen described)
  • Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Stud. Entomol. 15: 3–344.
  • Mayr, G. 1868b. Formicidae novae Americanae collectae a Prof. P. de Strobel. Annu. Soc. Nat. Mat. Modena 3: 161-178 (page 174, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 279, Senior synonym of lilianae, fig. major, minor described)