Pheidole guajirana

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

Pheidole guajirana casent0644210 p 1 high.jpg

Pheidole guajirana casent0644210 d 1 high.jpg

Specimen Labels

Found in or near rainforest, variously in sand and, in one instance, a rotten log in beach sand. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


Known from collections made at elevations to 200 m in several localities in Guajira and Magdalena, Colombia, as well as a series from the Caracaraí Road 20 km northeast of Manaus, Brazil. (Wilson 2003)

Latitudinal Distribution Pattern

Latitudinal Range: 11.262754° to 11.262754°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia (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.

  • guajirana. Pheidole guajirana Wilson, 2003: 431, figs. (s.w.) COLOMBIA.

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


Somewhat similar in various traits to the Nearctic species Pheidole casta, Pheidole mera and Pheidole tysoni, and easily distinguished as follows.

Major: posterior half of dorsal head profile flat; eye set well forward on head, pearl-shaped, with anterior end tapered slightly; head bicolored; dorsum of promesonotum covered with faint longitudinal carinulae, and foveolate; petiolar node tapered at apex; postpetiole from above diamond-shaped.

Minor: eye set well forward on head; occiput broad, its margin weakly concave; all of head, mesosoma, and petiole foveolate.

MEASUREMENTS (mm) Holotype major: HW 0.70, HL 0.78, SL 0.34, EL 0.10, PW 0.36. Paratype minor: HW 0.40, HL 0.44, SL 0.32, EL 0.06, PW 0.26.

COLOR Major: most of body medium brown (mesosoma tending to dark brown), and anterior one-sixth of head capsule, and appendages, brownish yellow.

Minor: body medium brown, appendages brownish yellow.

Pheidole guajirana Wilson 2003.jpg

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

Type Material

COLOMBIA: Puente Bomba, near Dibulla, Guajira, col. William L. and Doris E. Brown. Museum of Comparative Zoology


Named after the northernmost region of Colombia, origin of the type series.


References based on Global Ant Biodiversity Informatics

  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.