Pheidole crozieri

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

Pheidole crozieri jtlc000016354 p 1 high.jpg

Pheidole crozieri jtlc000016354 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of crozieri.


See the description in the nomenclature section.

Keys including this Species


Known from the type locality, and from two other series taken in Lima, Peru. (Wilson 2003)

Latitudinal Distribution Pattern

Latitudinal Range: -11.977037° to -11.977037°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Peru (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.




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

  • crozieri. Pheidole crozieri Wilson, 2003: 183, 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.


A light brown member of the diligens group, closest to Pheidole williamsi of the Galápagos Islands but also with some similarities to Pheidole vafella, as well as Pheidole rufipilis and the mostly South American species listed with rufipilis (q.v.), differing from williamsi as follows.

Major: light brown; pronotum in side view smoothly rounded, and single-lobed in dorsal-oblique view; occiput strongly concave; petiolar node high, its apex rounded.

Minor: petiolar node in side view high, and its dorsal border nearly flat in rear view.

MEASUREMENTS (mm) Holotype major: HW 1.10, HL 1.12, SL 0.74, EL 0.16, PW 0.54. Paratype minor: HW 0.50, HL 0.60, SL 0.66, EL 0.12, PW 0.32.

COLOR Major: body and most of head light brown; appendages and anterior third of head a slightly contrasting yellowish brown.

Minor: body and most of head light brown; gena and appendages yellowish brown.

Specimens from Lima in the Museum of Comparative Zoology are somewhat darker.

Pheidole crozieri Wilson 2003.jpg

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

Type Material

PERU: Chaclacayo, Lima, col. R. H. Crozier. Museum of Comparative Zoology


Named after the collector, the distinguished Australian myrmecologist Ross H. Crozier.


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.