Pheidole bidens

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

Pheidole bidens jtlc000016327 p 1 high.jpg

Pheidole bidens jtlc000016327 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: 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.

  • bidens. Pheidole bidens Wilson, 2003: 377, 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 medium-large, yellow member of the flavens group whose major is distinguished by the unusual bidentate anterior margin of the clypeus, heart-shaped head in full-face view, and completely carinulate clypeus.

Similar to Pheidole styrax of Venezuela but different in absence of an antennal scrobe and many other details of body form, sculpturing, pilosity, and color, as illustrated. See also the less similar Pheidole moffetti, Pheidole nasutoides and Pheidole tennantae .

MEASUREMENTS (mm) Holotype major: HW 1.04, HL 1.06, SL 0.56, EL 0.14, PW 0.44. Paratype minor: HW 0.54, HL 0.58, SL 0.46, EL 0.06, PW 0.34.

COLOR Major: body and mandibles medium reddish yellow, appendages dark yellow.

Minor: body medium reddish yellow, appendages plain medium yellow.

Pheidole bidens Wilson 2003.jpg

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

Type Material

BRAZIL: Pirella Plantation (Iriboca), near Belém, col. P. F. Darlington. Museum of Comparative Zoology


L bidens, two-toothed, referring to the clypeus.


References based on Global Ant Biodiversity Informatics

  • Wilson E. O. 2003. Pheidole in the New World. A dominant, hyperdiverse ant genus. Cambridge, Mass.: Harvard University Press, [ix] + 794 pp.