Current View: Bolton World Catalog
Change View
Cite this page

Citing AntWeb


To cite this page, please use the following:

· For print:      Citation: AntWeb. Version 8.24. California Academy of Science, online at Accessed .

· For web:

Species: Pheidole balzani   Emery, 1894 

Download Data

Taxonomic History (provided by Barry Bolton, 2020)

Pheidole balzani Emery, 1894d PDF: 161 (s.w.) BOLIVIA. Neotropic. AntCat AntWiki HOL

Taxonomic history

See also: Wilson, 2003A: 661.


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Bolivia
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press

Pheidole balzani EmeryHNS

Pheidole balzani EmeryHNS 1894d: 161.

Types Mus. Civ. Stor. Nat. Genova.

Etymology Named after the collector, Luigi Balzan.

diagnosis A large, robust member of the tristisHNS group with quadrate head shape in full-face view, similar to fabricatorHNS, gaigeiHNS, godmaniHNS, grantaeHNS, nigellaHNS, and tristisHNS, 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.

Range Known only from the type locality and Rancho Grande, Venezuela, 1100 m.

Biology Unknown.

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

Specimen Habitat Summary

Type specimens: syntype of Pheidole balzani: casent0904384, casent0904385

See something amiss? Send us an email.