Pheidole trageri

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Pheidole trageri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. trageri
Binomial name
Pheidole trageri
Wilson, 2003

Nothing is known about the biology of trageri.


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: 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 New General Catalogue, a catalogue of the world's ants.

  • trageri. Pheidole trageri Wilson, 2003: 358, figs. (s.w.) BRAZIL.

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


A member of a complex of Pheidole species with giant majors having short bristly hair, in the fallax group and comprising Pheidole astur, Pheidole oxyops, Pheidole praeusta and Pheidole trageri. P. trageri is distinguished among them by the following combination of traits.

Major: lacking rugoreticulum on head; one carinula on each side of the dorsal cephalic midline reaches the occiput but otherwise nearly the entire posterior half of the dorsal surface of the head capsule is smooth and shiny; pronotum faintly bilobous in dorsaloblique view; propodeal spines stout, long, and vertical to the basal propodeal face; postpetiolar node seen from above trapezoidal; pronotum entirely smooth and shiny.

Minor: occiput narrowed somewhat, with nuchal collar; propodeal spine reduced to a denticle; entire mesosoma, including pronotum, foveolate and opaque.

MEASUREMENTS (mm) Holotype major: HW 2.10, HL 2.44, SL 1.04, EL 0.26, PW 0.92. Paratype minor: HW 0.62, HL 0.80, SL 0.94, EL 0.16, PW 0.44.

COLOR Major: light reddish yellow (light “orange”), color deepening from middle of head forward, reaching light reddish brown on mandibles.

Minor: concolorous yellow.

Pheidole trageri Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Type Material

BRAZIL: campus of Universidade Federale de Mato Grosso, Cuiabá, Mato Grosso, col. James Trager. Museum of Comparative Zoology


Named after the myrmecologist and collector of the type series James Trager.