Pseudomyrmex goeldii

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Pseudomyrmex goeldii
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Pseudomyrmecinae
Genus: Pseudomyrmex
Species group: goeldii
Species: P. goeldii
Binomial name
Pseudomyrmex goeldii
(Forel, 1912)

Pseudomyrmex goeldii casent0907543 p 1 high.jpg

Pseudomyrmex goeldii casent0907543 d 1 high.jpg

Specimen Labels

P. goeldii is known only from the type series collected more than a century ago in southeastern Brazil by Emílio Goeldi. The type locality (Sorocaba) is located within the Atlantic rainforest region. (Ward 2017)


Ward (2017) - This species is distinguished by the combination of relatively large size (HL 0.81–0.87, HW 0.65– 0.66), shiny puncticulate head, and weakly angulate juncture of the dorsal and declivitous faces of the propodeum. The eye appears to be shorter than in other members of the goeldii group (REL 0.55–0.56 versus 0.57–0.66 in other species; REL2 0.69–0.73 versus 0.75–0.87).

Keys including this Species


Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

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.

  • goeldii. Pseudomyrma goeldii Forel, 1912g: 28 (w.) BRAZIL. Combination in Pseudomyrmex: Kempf, 1972a: 219.

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



Ward (2017) - (n = 3). HL 0.81–0.87, HW 0.65–0.66, MFC 0.009–0.010, CI 0.76–0.80, REL 0.55–0.56, REL2 0.69–0.73, FCI 0.014–0.015, FI 0.49–0.53, PLI 0.51–0.59, PWI 0.48–0.56.

Larger species (HL 0.81–0.87, HW 0.65–0.66) in comparison with other members of the goeldii-group, with shorter eyes (see REL and REL2 indices); juncture between dorsal and declivitous faces of propodeum only weakly angulate; in profile anterodorsal face of petiole ascending about as steeply as posterodorsal face. Head smooth and shiny with scattered fine punctulae; pronotum similar, but remainder of mesosoma becoming sublucid, with coriarious-imbricate sculpture; luster of petiole, postpetiole and gaster dulled by moderately dense pubescence. Rather uniformly dark brown, appendages slightly lighter.

Type Material

Ward (2017) - Syntypes, three workers, Sorocaba, São Paulo, Brazil (Göldi) (Musee d'Histoire Naturelle Genève) [Examined] [One syntype worker also imaged on AntWeb: CASENT0907543].


References based on Global Ant Biodiversity Informatics

  • Forel A. 1912. Formicides néotropiques. Part IV. 3me sous-famille Myrmicinae Lep. (suite). Mémoires de la Société Entomologique de Belgique. 20: 1-32.
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).