Pheidole balzani

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Pheidole balzani
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. balzani
Binomial name
Pheidole balzani
Emery, 1894



Specimen Label

Nothing is known about the biology of balzani.


See the description in the nomenclature section.

Keys including this Species


Known only from the type locality and Rancho Grande, Venezuela, 1100 m. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Bolivia (type locality), Venezuela.

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.

  • balzani. Pheidole balzani Emery, 1894c: 161 (s.w.) BOLIVIA. See also: Wilson, 2003: 661.

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


From Wilson (2003): DIAGNOSIS A large, robust member of the tristis group with quadrate head shape in full-face view, similar to Pheidole fabricator, Pheidole gaigei, Pheidole godmani, Pheidole grantae (=Pheidole exarata), Pheidole nigella and Pheidole tristis, and distinguished by the following combination of traits.

Major: head quadrate, with shallow median occipital cleft in full-face view; hind femora swollen in middle; frontal lobe extended as short angular protrusion in side view; humerus in dorsal-oblique view very prominent, and right-subtriangular in outline; postpetiole bell-shaped from above; all of pronotal dorsum transversely carinulate.

Minor: humerus prominent, subangulate; carinulae originating from frontal carinae curve laterally toward sides of head; pronotal dorsum transversely carinulate.

MEASUREMENTS (mm) Holotype major: HW 1.58, HL 1.66, SL 0.84, EL 0.20, PW 0.80. Paratype minor: HW 0.72, HL 0.72, SL 0.72, EL 0.12, PW 0.48.

COLOR Major: body and mandibles dark reddish brown, appendages medium brownish yellow.

Minor: body plain medium brown, appendages plain light brown.

Pheidole balzani Wilson 2003.jpg

Figure. Upper: holotype, major; the leg part shown is the right hind femur . Lower: minor, tentatively associated with holotype by Carlos Emery (Bolivia). Scale bars = 1 mm.

Type Material

Salinas, Rio Beni, Bolivia. Museo Civico di Storia Naturale, Genoa - as reported in Wilson (2003)


Named after the collector, Luigi Balzan. (Wilson 2003)


  • Emery, C. 1894d. Studi sulle formiche della fauna neotropica. VI-XVI. Bull. Soc. Entomol. Ital. 26: 137-241 (page 161, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 661, fig. major, minor described)

References based on Global Ant Biodiversity Informatics

  • Emery C. 1894. Studi sulle formiche della fauna neotropica. VI-XVI. Bullettino della Società Entomologica Italiana 26: 137-241.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.