Pheidole sagax

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

The type series was collected from a forested ravine. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


From Wilson (2003): Known from the type series and from Granada, Nicaragua, col. C. F. Baker.

Distribution based on Regional Taxon Lists

Neotropical Region: Colombia (type locality), Ecuador, Nicaragua, 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.

  • sagax. Pheidole sagax Wilson, 2003: 227, 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.


A member of the diligens group, close to Pheidole diligens, Pheidole radoszkowskii, and allied species, distinguished as follows.

Major: yellow; in full-face view, profiles of occipital lobes form almost perfect semicircles; in dorsal-oblique view, humerus is subangulate and pronotum weakly bilobous; petiolar node broad, its apex in side view broadly rounded; all of head dorsum and mesosoma foveolate; gaster entirely smooth and shiny; profile of head in full-face view bare of pilosity, except for clypeus.

Minor: yellow; occiput slightly narrowed, with nuchal collar; most of posterior dorsal surface of head and all of gaster smooth and shiny.

MEASUREMENTS (mm) Holotype major: HW 1.14, HL 1.14, SL 0.76, EL 0.16, PW 0.54. Paratype minor: HW 0.54, HL 0.62, SL 0.70, EL 0.14, PW 0.36.

COLOR Major and minor: concolorous medium yellow.

Pheidole sagax Wilson 2003.jpg

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

Type Material

COLOMBIA: 5 km north of Villavicencio, Meta, col. William L. and Doris E. Brown. Museum of Comparative Zoology


L sagax, referring to the globose occipital lobes.