Pheidole zoster

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Pheidole zoster
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. zoster
Binomial name
Pheidole zoster
Wilson, 2003

The nest contained a seed cache and males 9- 12 March. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


Only known from the type locality.

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil, Peru (type locality).

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.

  • zoster. Pheidole zoster Wilson, 2003: 778, figs. (s.w.) PERU.

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


DIAGNOSIS A large, bicolorous (major) or reddish yellow (minor) member of the tristis group whose major has a very large ovalangulate postpetiolar node, prominent subpostpetiolar convexity, dense parallel transverse carinulae covering all of the promesonotum, and completely foveolate and opaque dorsal head surface and first gastral tergite.

Minor: with large, somewhat elongated bell-shaped postpetiole; subpostpetiolar process; short, erect propodeal spines, and completely foveolate and opaque dorsal head surface and first gastral tergite.

Similar to Pheidole alpinensis, Pheidole exarata, Pheidole excubitor, Pheidole germaini, Pheidole grandinodus, Pheidole obrima, Pheidole rogeri, Pheidole stulta and Pheidole tristis, differing in many details of body form, sculpturing, and pilosity, as illustrated, and in color.

MEASUREMENTS (mrn) Holotype major: HW l.64, HL l.82, SL 0.82, EL 0.20, PW 0.88. Paratype minor: HW 0.70, HL 0.74, SL 0.68, EL 0.14, PW 0.44.

COLOR Major: head, mesosoma, and petiole reddish yellow; mandibles medium brown; postpetiole and gaster light brown; legs and antennae dark yellow.

Minor: reddish yellow.

Pheidole zoster Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Type Material

PERU: Tingo Maria, col. William L. Brown. Museum of Comparative Zoology


Gr zoster, belt, girdle, referring to the broad postpetiole.


References based on Global Ant Biodiversity Informatics

  • Bezdeckova K., P. Bedecka, and I. Machar. 2015. A checklist of the ants (Hymenoptera: Formicidae) of Peru. Zootaxa 4020 (1): 101–133.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.