Pheidole hirsuta

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Pheidole hirsuta
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. hirsuta
Binomial name
Pheidole hirsuta
Emery, 1896

Pheidole hirsuta casent0904357 p 1 high.jpg

Pheidole hirsuta casent0904357 d 1 high.jpg

Specimen Labels


See the description in the nomenclature section.

Keys including this Species


Atlantic and Pacific lowlands of Costa Rica (Longino 1997).

Latitudinal Distribution Pattern

Latitudinal Range: 10.43333333° to 9.6658426°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (type locality), Guatemala, Panama.

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.

  • hirsuta. Pheidole hirsuta Emery, 1896g: 65 (s.) COSTA RICA. See also: Wilson, 2003: 299.

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 large dark brown (major) or medium reddish brown (minor) member of the fallax group.

Major: a bicolorous head; rugoreticulation extending on either side of the dorsum of the head from its anterior margin to near the occiput, separated by a band of carinulae that originates on the frontal lobes; mesopleuron and side of propodeum covered by longitudinal carinulae; and propodeal spine short and erect.

Minor: bicolorous; completely smooth and shiny except for circular carinulae around the antennal fossae and longitudinal carinulae that cover the mesopleuron and side of propodeum; nuchal collar present.

Similar to Pheidole lourothi, differing in many details of the characters described above.

MEASUREMENTS (mm) Holotype major: HW 1.96, HL 2.00, SL 1.14, EL 0.26, PW 0.94. Minor: HW 0.64, HL 0.82, SL 1.06, EL 0.14, PW 0.46.

COLOR Major: head bicolorous, mostly medium brown, with anterior one-fourth of capsule, including clypeus, genae anterior to eyes and anterior tips of frontal lobes yellowish brown; rest of body mostly dark brown; appendages light brown.

Minor: blackish brown, with contrasting yellow clypeal lateral wings, mandibles, antennal club, and tarsi.

Pheidole hirsuta Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: minor. COSTA RICA: La Selva Biological Station, near Puerto Viejo, Heredia (E. O. Wilson). Scale bars = 1 mm.

Type Material

Jiménez, near Guápiles, Limón. Museo Civico di Storia Naturale, Genoa - as reported in Wilson (2003)


L hirsuta, hairy. (Wilson 2003)


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).
  • Longino J. T. L., and M. G. Branstetter. 2018. The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants. Ecography 41: 1-12.
  • Longino J. T., and R. K. Colwell. 2011. Density compensation, species composition, and richness of ants on a neotropical elevational gradient. Ecosphere 2(3): 16pp.
  • Longino J. et al. ADMAC project. Accessed on March 24th 2017 at