Pheidole humeridens

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

At the type locality humeridens colonies occupied conspicuous mound nests in a heavily grazed pasture. (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: Argentina (type locality).

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.

  • humeridens. Pheidole humeridens Wilson, 2003: 301, figs. (s.w.) ARGENTINA.

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 fallax group similar in various characters to Pheidole chiapasana, Pheidole dentata, Pheidole laeviventris, Pheidole madrensis, Pheidole maja and Pheidole tetroides, differing as follows.

Major: humerus dentate; rugoreticulum on sides of head extends to halfway between eyes and level of occiput; mid-occiput transversely carinulate; antennal scapes reach halfway between eyes and level of occiput; anterior edge of pronotum and all of propodeal dorsum transversely carinulate; in side view, propodeal spines short, vertical to basal propodeal face; from above, postpetiole oval.

Minor: bicolored (see below); humerus toothed; propodeal tooth small and thin; propodeal dorsum carinulate; occiput in full-face view flat.

MEASUREMENTS (mm) Holotype major: HW 1.50, HL 1.56, SL 1.02, EL 0.26, PW 0.78. Paratype minor: HW 0.74, HL 0.80, SL 0.94, EL 0.20, PW 0.46.

COLOR Major: brownish yellow, with rear halves of gastral tergites changing to light brown.

Minor: bicolored, with head, gaster, and pronotal dorsum medium brown, and rest of body and appendages brownish yellow.

Pheidole humeridens Wilson 2003.jpg

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

Type Material

ARGENTINA: Buenos Aires, col. James C. Trager. Museum of Comparative Zoology


L humeridens, shoulder-tooth.