Pheidole pampana

AntWiki: The Ants --- Online
Pheidole pampana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species group: fallax
Species: P. pampana
Binomial name
Pheidole pampana
Santschi, 1929

Pheidole pampana casent0913360 p 1 high.jpg

Pheidole pampana casent0913360 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of pampana.


See the description in the nomenclature section.

Keys including this Species


Only known from the type locality.

Latitudinal Distribution Pattern

Latitudinal Range: -24.563333° to -31.657°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality).

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 pampana casent0913361 h 1 high.jpgPheidole pampana casent0913361 p 1 high.jpgPheidole pampana casent0913361 d 1 high.jpgPheidole pampana casent0913361 l 1 high.jpg
Type of unavailable quadrinomial: Pheidole nitidula pampana nigriorWorker. Specimen code casent0913361. Photographer Z. Lieberman, uploaded by California Academy of Sciences. Owned by NHMB, Basel, Switzerland.


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

  • pampana. Pheidole nitidula st. pampana Santschi, 1929d: 283, figs. 6-8 (s.w.m.) ARGENTINA. Raised to species and material of the unavailabel name nigrior referred here: Wilson, 2003: 334.

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, similar in various characters to Pheidole bergi, Pheidole cordiceps, Pheidole eidmanni and Pheidole nitidula, distinguished as follows.

Major: head slightly bicolorous (see Color below); humerus in dorsal-oblique view subangulate; rugoreticulum of head covering a swath between each eye and antennal fossa; carinulae absent from center of vertex, and those to each side reach less than half the distance from eye level to level of occiput; anterior strip of pronotal dorsum carinulate.

Minor: pilosity very long, with some hairs longer than Eye Length; pronotum entirely smooth; occiput narrowed, with convex border, but lacking nuchal collar.

MEASUREMENTS (mm) Lectotype major: HW 1.40, HL 1.40, SL 0.86, EL 0.22, PW 0.70. Paralectotype minor: HW 0.72, HL 0.76, SL 0.82, EL 0.20, PW 0.46.

COLOR Major: body concolorous medium reddish brown except for anterior vertex and anterior one-third of head, which is brownish yellow; appendages yellow.

Minor: body plain medium brown, with venter and genae tending to yellowish brown; appendages brownish yellow.

Pheidole pampana Wilson 2003.jpg

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


Syntype Specimen Labels

Type Material

ARGENTINA: Alta Gracia, Córdoba. Naturhistorisches Museum, Basel - as reported in Wilson (2003)


Referring to the pampas, the Argentine grasslands where presumably the types were collected. (Wilson 2003)


References based on Global Ant Biodiversity Informatics

  • Drose W., L. R. Podgaiski, C. Fagundes Dias, M. de Souza Mendonca. 2019. Local and regional drivers of ant communities in forest-grassland ecotones in South Brazil: A taxonomic and phylogenetic approach. Plos ONE 14(4): e0215310.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).