Pheidole skwarrae

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Pheidole skwarrae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. skwarrae
Binomial name
Pheidole skwarrae
Wheeler, W.M., 1934

MCZ-ENT00020768 Pheidole schwarrae hal.jpg

MCZ-ENT00020768 Pheidole schwarrae had.jpg

Type Specimen Label

The type colony was nesting beneath a stone.


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: Mexico (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.

  • skwarrae. Pheidole skwarrae Wheeler, W.M. 1934g: 163 (s.w.q.) MEXICO. See also: Wilson, 2003: 349.

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


From Wilson (2003): A member of the fallax group, closet to Pheidole vistana and distinguished from it and other fallax group species by the following combination of traits.

Major: head elongate, with deep occipital cleft and subangulate occipital lobes in full-face view; antennal scape exceeding the occipital lobe by 2x its own maximum width; entire body, including all of the tergites and sternites of the gaster, foveolate and opaque; space between eye, frontal lobes, and frontal carinae rugoreticulate.

Minor: entire body, including at least the anterior two segments of the gaster, foveolate and opaque; nuchal collar well developed; antennal scape very long, extending 2X the distance between its insertion and nuchal collar.

MEASUREMENTS (mm) Lectotype major: HW 1.32, HL 1.60, SL 1.42, EL 0.24, PW 0.64. Paralectotype minor: HW 0.54, HL 0.84, SL 1.20, EL 0.16, PW 0.42.

COLOR Major and minor: body concolorous medium brown, appendages yellowish brown.

Pheidole skwarrae Wilson 2003.jpg

Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.

Lectotype Specimen Labels

Type Material

Described from one soldier, one female and two workers taken from a single colony (No. 803) nesting under a stone at Cuernavaca, Morelos. Museum of Comparative Zoology

MEXICO: Cuernavaca, Morelos, col. Elisabeth Skwarra.


Named after the collector, Elisabeth Skwarra.


  • Wheeler, W. M. 1934g. Neotropical ants collected by Dr. Elisabeth Skwarra and others. Bull. Mus. Comp. Zool. 77: 157-240 (page 163, soldier, worker, queen described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 349, fig. major, minor described)