Pheidole schmalzi

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Pheidole schmalzi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. schmalzi
Binomial name
Pheidole schmalzi
Emery, 1894

Pheidole schmalzi casent0904430 p 1 high.jpg

Pheidole schmalzi casent0904430 d 1 high.jpg

Specimen Labels


This species is only known from type specimens. Nothing is known about its biology.


See the description in the nomenclature section.

Keys including this Species


Santa Catarina and Rio de Janeiro, Brazil; Bolivia; Venezuela. (Wilson 2003)

Latitudinal Distribution Pattern

Latitudinal Range: -22.505° to -26.32°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Bolivia, Brazil (type locality), Venezuela.

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.








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

  • schmalzi. Pheidole dimidiata var. schmalzi Emery, 1894c: 161 (s.w.) BRAZIL. Raised to species and senior synonym of rata, rehi: Wilson, 2003: 504.
  • rehi. Pheidole rehi Forel, 1900e: 285 (s.w.q.m.) VENEZUELA. Junior synonym of schmalzi: Wilson, 2003: 504.
  • rata. Pheidole rata Borgmeier, 1929: 206, pl. 6, fig. 2; pl. 7, fig. 6 (s.w.) BRAZIL. Junior synonym of schmalzi: Wilson, 2003: 504.

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 A medium-sized reddish yellow to brown member of the flavens group; both major and minor are immediately recognizable by the large, “shark-fin” shape of the humerus in dorsal-oblique view, meaning that the anterior margin is straight and the posterior margin convex in profile, tipped with an acute or right angle. Very similar to Pheidole angulifera, and in varying degree also to Pheidole arhuaca, Pheidole caulicola, Pheidole chalca, Pheidole nitidicollis, Pheidole mincana, Pheidole sagana, Pheidole tambopatae and Pheidole tragica in overall appearance but distinctive in the humeral shape and other traits in body shape, sculpture, pilosity, and color.

MEASUREMENTS (mm) Lectotype major: HW 0.94, HL 0.94, SL 0.46, EL 0.10, PW 0.48. Paralectotype minor: HW 0.50, HL 0.54, SL 0.58, EL 0.08, PW 0.34.

COLOR Lectotype major of schmalzi: body and appendages light brown, waist and gaster dark brown (rehi syntype major is yellowish brown; rata syntype major is light reddish yellow).

Paralectotype minors of schmalzi: body light to medium brown, appendages light brown. Syntype minors of synonymous rehi and rata: light brown.

Pheidole schmalzi Wilson 2003.jpg

Figure. Upper: major (syntype of synonymous P. rata Borgmeier). Lower: minor (syntype of synonymous P. rata Borgmeier). BRAZIL: Petrópolis, Rio de Janeiro, type locality of synonymous P. rata. Scale bars = 1 mm.

Type Material

Joinville, Santa Catarina, Brazil. Museo Civico di Storia Naturale, Genoa - as reported in Wilson (2003)


Named after the collector “Signor Schmalz.” (Wilson 2003)


  • Emery, C. 1894d. Studi sulle formiche della fauna neotropica. VI-XVI. Bull. Soc. Entomol. Ital. 26: 137-241 (page 161, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 504, fig. major, minor described, senior synonym of rehi, rata)

References based on Global Ant Biodiversity Informatics

  • Emery C. 1894. Studi sulle formiche della fauna neotropica. VI-XVI. Bullettino della Società Entomologica Italiana 26: 137-241.
  • Fernández, F. and S. Sendoya. 2004. Lista de las hormigas neotropicales. Biota Colombiana Volume 5, Number 1.
  • Kempf W. W. 1978. A preliminary zoogeographical analysis of a regional ant fauna in Latin America. 114. Studia Entomologica 20: 43-62.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • Kusnezov N. 1953. La fauna mirmecológica de Bolivia. Folia Universitaria. Cochabamba 6: 211-229.
  • Rosa da Silva R. 1999. Formigas (Hymenoptera: Formicidae) do oeste de Santa Catarina: historico das coletas e lista atualizada das especies do Estado de Santa Catarina. Biotemas 12(2): 75-100.
  • Wheeler W. M. 1925. Neotropical ants in the collections of the Royal Museum of Stockholm. Arkiv för Zoologi 17A(8): 1-55.