Pheidole haskinsorum

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

The type series was collected in a burned-over pasture as the workers retrieved insects. (Wilson 2003)


See the description in the nomenclature section.

Keys including this Species


Known from the type locality and from the Yasuni National Park of Ecuador. (Wilson 2003)

Latitudinal Distribution Pattern

Latitudinal Range: -0.6364° to -19.333333°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Bolivia (type locality), Ecuador.

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.

  • haskinsorum. Pheidole haskinsorum Wilson, 2003: 297, figs. (s.w.) BOLIVIA.

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


A small member of the fallax group, similar to Pheidole lattkei, Pheidole obscurior (=Pheidole susannae), Pheidole nubicola and Pheidole susannae, and distinguished by the following traits.

Major: small; antennal scape surpasses occipital corner by its own maximum width; posterior third of head capsule devoid of sculpturing except for several carinulae along the midline that run to the occiput; rugoreticulum limited to a small patch just mesad to the eyes; head subrectangular in shape; pronotum bare except for foveolae on anterior and lateral margins; a thin anterior fringe of shagreening present on first gastral tergite.

Minor: head in full-face view with an unusual, symmetrically elliptical shape; nuchal crest present; propodeal spines short and thin.

MEASUREMENTS (mm) Holotype major: HW 0.84, HL 0.94, SL 0.86, EL 0.16, PW 0.52. Paratype minor: HW 0.48, HL 0.16, SL 0.86, EL 0.16, PW 0.34.

COLOR Major: body dark reddish brown, appendages medium reddish brown.

Minor: head, mesosoma, and waist dark brown; gaster and appendages light brown.

Pheidole haskinsorum Wilson 2003.jpg

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

Type Material

BOLIVIA: Saavedra Experimental Farm, col. James C. Trager. Museum of Comparative Zoology


Named for the distinguished myrmecologists Caryl P. and Edna F. Haskins.