Pheidole scapulata

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Pheidole scapulata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. scapulata
Binomial name
Pheidole scapulata
Santschi, 1923

Pheidole scapulata casent0178054 profile 1.jpg

Pheidole scapulata casent0178054 dorsal 1.jpg

Specimen labels

Nothing is known about the biology of scapulata.


See the description in the nomenclature section.

Keys including this Species


Córdoba, Salta, and Tucumán in Argentina; and Santa Cruz in Bolivia. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality), Bolivia, Paraguay.

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.

  • scapulata. Pheidole scapulata Santschi, 1923d: 63 (w.) ARGENTINA. Combination in P. (Trachypheidole): Kempf, 1972a: 205. See also: Wilson, 2003: 257.

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


From Wilson (2003): Closest to Pheidole monstrosa and Pheidole reclusi, distinguished from these and other members of the distorta group as follows.

Major: entire dorsum of head to the level of the posterior clypeal border of the clypeus completely and densely rugoreticulate; upper fourth of side of head longitudinally carinulate; all but anterior strip of promesonotal dorsum, and all of dorsa of petiolar and postpetiolar nodes rugoreticulate.

Minor: humerus in oblique-dorsal view right-angulate; head heavily sculptured, with extensive rugoreticulum mesad and posterior to eyes; mesonotal dorsum rugoreticulate.

MEASUREMENTS (mm) Major (Tucumán, Argentina)): HW 1.62, HL 1.98, SL 0.74, EL 0.24, PW 1.06. Lectotype minor: HW 0.80, HL 0.78, SL 0.62, EL 0.16, PW 0.52.

COLOR Major: medium reddish brown (possibly a callow) to dark brown.

Minor: concolorous medium brown except for gaster, which is dark brown.

Pheidole scapulata Wilson 2003.jpg

Figure. Upper: major (associated with minor compared with lectotype minor), Tucumán, Argentina. Lower: lectotype, minor, Alta Gracia, Córdoba, Argentina. Scale bars = 1 mm.

Type Material

Argentina. Naturhistorisches Museum, Basel - as reported in Wilson (2003)


L scapula, pertaining to the shoulder, allusion unknown. (Wilson 2003)


  • Kempf, W. W. 1972b. Catálogo abreviado das formigas da regia~o Neotropical. Stud. Entomol. 15: 3-344 (page 205, Combination in P. (Trachypheidole))
  • Santschi, F. 1923d. Pheidole et quelques autres fourmis néotropiques. Ann. Soc. Entomol. Belg. 63: 45-69 (page 63, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 257, fig. major, minor described)

References based on Global Ant Biodiversity Informatics

  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • Kusnezov N. 1956. Claves para la identificación de las hormigas de la fauna argentina. Idia 104-105: 1-56.
  • Wild, A. L. "A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)." Zootaxa 1622 (2007): 1-55.