Pheidole rugatula

AntWiki: The Ants --- Online
Pheidole rugatula
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. rugatula
Binomial name
Pheidole rugatula
Santschi, 1933

Pheidole rugatula casent0178051 profile 1.jpg

Pheidole rugatula casent0178051 dorsal 1.jpg

Specimen labels

Nothing is known about the biology of rugatula.


See the description in the nomenclature section.

Keys including this Species


Only known from the type locality.

Latitudinal Distribution Pattern

Latitudinal Range: 25.68015° to -28.4°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality), Paraguay.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.

Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.





Images from AntWeb

Pheidole rugatula casent0178052 head 1.jpgPheidole rugatula casent0178052 profile 1.jpgPheidole rugatula casent0178052 dorsal 1.jpgPheidole rugatula casent0178052 label 1.jpg
Worker. Specimen code casent0178052. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ALWC, Alex L. Wild Collection.


Images from AntWeb

Pheidole rugatula casent0178053 head 1.jpgPheidole rugatula casent0178053 profile 1.jpgPheidole rugatula casent0178053 label 1.jpg
Queen (alate/dealate). Specimen code casent0178053. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ALWC, Alex L. Wild Collection.


The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • rugatula. Pheidole (Pheidole) risi var. rugatula Santschi, 1933e: 109 (s.w.) ARGENTINA. Raised to species: Wilson, 2003: 745.

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


From Wilson (2003): DIAGNOSIS Similar in various traits to Pheidole aper, Pheidole bambusarum, Pheidole brevicona, Pheidole dyctiota, Pheidole laeviventris, Pheidole lutzi, Pheidole risii, Pheidole senilis,Pheidole sigillata, Pheidole trachyderma and Pheidole traini, differing as follows.

Major: rugoreticulum confined to small patch posterior to antennal fossa on each side of head; entire rest of head carinulate except frontal triangle and mid-clypeus; all of dorsal surface of mesosoma transversely carinulate, and carinulae on pronotal dorsum curve down to pronotal sides as rugulae; hairs along posterior dorsal half of head profile of uniform short length, about half of Eye Length, and those along anterior dorsal half mostly 1.5–2.0! as long; postpetiole from above spinose.

Minor: posterior third of head and all of promesonotal dorsum rugoreticulate; propodeal spines reduced to denticles; occiput only slightly narrowed, but with nuchal collar.

MEASUREMENTS (mm) Lectotype major: HW 1.34, HL 1.38, SL 0.70, EL 0.14, PW 0.74. Paralectotype minor: HW 0.64, HL 0.62, SL 0.60, EL 0.06, PW 0.40.

COLOR Major: body dark reddish brown, appendages dark yellow.

Minor: body plain medium brown, appendages brownish yellow.

Pheidole rugatula Wilson 2003.jpg

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

Type Material

ARGENTINA: Loreto, Misiones. Naturhistorisches Museum, Basel - as reported in Wilson (2003)


L rugatula, with little wrinkles (rugulae). (Wilson 2003)


  • Santschi, F. 1933f. Fourmis de la République Argentine en particulier du territoire de Misiones. An. Soc. Cient. Argent. 116: 105-124 (page 109, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 745, fig. major, minor described, Raised to species: new status)

References based on Global Ant Biodiversity Informatics

  • Cuezzo, F. 1998. Formicidae. Chapter 42 in Morrone J.J., and S. Coscaron (dirs) Biodiversidad de artropodos argentinos: una perspectiva biotaxonomica Ediciones Sur, La Plata. Pages 452-462.
  • Fleck M. D., E. Bisognin Cantarelli, and F. Granzotto. 2015. Register of new species of ants (Hymenoptera: Formicidae) in Rio Grande do Sul state. Ciencia Florestal, Santa Maria 25(2): 491-499.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • Santschi F. 1933. Fourmis de la République Argentine en particulier du territoire de Misiones. Anales de la Sociedad Cientifica Argentina. 116: 105-124.
  • Vittar, F. 2008. Hormigas (Hymenoptera: Formicidae) de la Mesopotamia Argentina. INSUGEO Miscelania 17(2):447-466
  • Wild, A. L. "A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)." Zootaxa 1622 (2007): 1-55.