Pheidole chilensis

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Pheidole chilensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. chilensis
Binomial name
Pheidole chilensis
Mayr, 1862

Pheidole chilensis casent0217902 p 1 high.jpg

Pheidole chilensis casent0217902 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of chilensis.


See the description in the nomenclature section.

Keys including this Species


Known from the type collection from Chile; I have further compared a 1961 series from Lima, Peru, with the Mayr types. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Chile (type locality), Peru.

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.

  • chilensis. Pheidole chilensis Mayr, 1862: 748 (s.w.q.m.) CHILE. See also: Mayr, 1865: 95; Wilson, 2003: 179.

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


From Wilson (2003): An unusual species, placed in the diligens group but also reminiscent of Pheidole indica, an exotic native to Mediterranean area. P. chilensis may also prove to be an exotic.

Major: lacking the 4-lobed profile and broad, convex metanotum of indica; dorsal surface of the head covered by carinulae except for frontal triangle and midclypeus; carinulae originating on the frontal lobes spread outward as they approach the occiput and then travel back to return to the anterior part of the head in parallel; antennal scrobes present; anterior midclypeal margin excavated; postpetiole from above conulate; all of promesonotum transversely carinulate.

Minor: occiput narrowed and with nuchal collar; postpetiole from above diamond-shaped.

Both castes have abundant, erect hairs on the antennal scapes.

MEASUREMENTS (mm) Lectotype major: HW 1.46, HL 1.48, SL 0.94, EL 0.22, PW 0.62 (may be distorted by pin through pronotum). Paralectotype minor: HW 0.60, HL 0.76, SL 0.94, EL 0.14, PW 0.40.

COLOR Major: body light reddish yellow, gaster light yellowish brown.

Minor: concolorous yellow.

Majors and minors collected in Lima in 1961 are medium reddish brown.

Pheidole chilensis Wilson 2003.jpg

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

Type Material

CHILE: no further data. Naturhistorisches Museum Wien, Vienna - as reported in Wilson (2003)


Named after the country of origin. (Wilson 2003)


  • Mayr, G. 1862. Myrmecologische Studien. Verh. K-K. Zool.-Bot. Ges. Wien 12: 649-776 (page 748, soldier, worker, queen, male described)
  • Mayr, G. 1865. Formicidae. In: Reise der Österreichischen Fregatte "Novara" um die Erde in den Jahren 1857, 1858, 1859. Zoologischer Theil. Bd. II. Abt. 1. Wien: K. Gerold's Sohn, 119 pp. (page 95, see also)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 179, fig. major, minor described)