Pheidole alexeter

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

Collected in a savanna. (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: Brazil (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.

  • alexeter. Pheidole alexeter Wilson, 2003: 648, figs. (s.w.) BRAZIL.

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


DIAGNOSIS A very distinct member of the tristis group distinguished by the following combination of traits.

Major: head short-rectangular; humerus very prominently lobose in dorsal-oblique view; mesonotal convexity prominent and symmetrical in side view; propodeal spines equilaterally triangular and directed perpendicular to basal propodeal face; postpetiole spinose from above; faint, shallow antennal scrobes present; posterior two-thirds of the dorsal surface of the head mostly covered by loose rugoreticulum; pronotal dorsum transversely carinulate and humeri bearing weak patches of rugoreticula.

Minor: occiput narrowed, with nuchal collar; propodeal spines reduced to dentic1es; humeri with loose rugoreticula; most of body smooth and shiny.

MEASUREMENTS (mm) Holotype major: HW 1.44, HL 1.54, SL 0.72, EL 0.16, PW 0.72. Paratype minor: HW 0.62, HL 0.62, SL 0.66, EL 0.10, PW 0.40.

COLOR Major: body, mandibles, and antennae rich medium reddish brown, legs dark yellow.

Minor: concolorous dark yellow.

Pheidole alexeter Wilson 2003.jpg

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

Type Material

BRAZIL: Vigia, near Belem, Para, col. William L. Brown. Museum of Comparative Zoology


Gr alexeter, guard, defender.


References based on Global Ant Biodiversity Informatics

  • Fichaux M., B. Bechade, J. Donald, A. Weyna, J. H. C. Delabie, J. Murienne, C. Baraloto, and J. Orivel. 2019. Habitats shape taxonomic and functional composition of Neotropical ant assemblages. Oecologia 189(2): 501-513.
  • Franco W., N. Ladino, J. H. C. Delabie, A. Dejean, J. Orivel, M. Fichaux, S. Groc, M. Leponce, and R. M. Feitosa. 2019. First checklist of the ants (Hymenoptera: Formicidae) of French Guiana. Zootaxa 4674(5): 509-543.