Pheidole longior

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Pheidole longior
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. longior
Binomial name
Pheidole longior
Santschi, 1933

Pheidole longior casent0922394 p 1 high.jpg

Pheidole longior casent0922394 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


Only known from the type locality.

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • longior. Pheidole (Elasmopheidole) cavifrons st. longior Santschi, 1933e: 110, figs. 1-3 (s.w.) ARGENTINA. Raised to species: Wilson, 2003: 136.

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


From Wilson (2003): Closest to Pheidole cavifrons, somewhat less similar to Pheidole aberrans and Pheidole obnixa, distinguished as follows.

Major: head markedly elongate (Head Length/Head Width 1.47), and bicolored (see under color below); dorsal posterior half of head profile flat; frontal lobes in full-face view taper anteriorly into blunt acute angles; carinulae originating on frontal lobes reach well past midpoint between eyes and occiput; mesosomal convexity in side view reduced, obliquely angular; propodeal spines denticulate; promesonotum smooth and shiny.

Minor: nearly identical to minor of cavifrons (q.v.).

MEASUREMENTS (mm) Lectotype major: HW 0.72, HL 1.06, SL 0.30, EL 0.06, PW 0.50. Paralectotype minor: HW 0.50, HL 0.58, SL 0.36, EL 0.04, PW 0.32.

COLOR Major: strikingly bicolored, with anterior fourth of head dark brown, and rest of body medium yellow. Minor: concolorous light yellow.

Pheidole longior Wilson 2003.jpg

Figure. Upper: lectotype, major. The minor is nearly identical to the minor of Pheidole cavifrons (q.v.). Scale bars = 1 mm.

Type Material

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


L longior, longer, referring to the head shape of the major. (Wilson 2003)


  • Santschi, F. 1933f. Fourmis de la République Argentine en particulier du territoire de Misiones. An. Soc. Cient. Argent. 116: 105-124 (page 110, figs. 1-3 soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 136, fig. major, minor described, Raised to species: new status)