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.

Latitudinal Distribution Pattern

Latitudinal Range: -5.433333° to -5.433333°.

Tropical South

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

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.






Images from AntWeb

Pheidole bidens casent0625440 h 1 high.jpgPheidole bidens casent0625440 p 1 high.jpgPheidole bidens casent0625440 d 1 high.jpgPheidole bidens casent0625440 p 4 high.jpgPheidole bidens casent0625440 l 1 high.jpg
Paratype Pheidole bidensWorker. Specimen code casent0625440. Photographer Jeremy Pilllow, uploaded by University of Utah. Owned by MCZC.


Images from AntWeb

Pheidole bidens jtlc000016327 p 4 high.jpg
Paratype Pheidole bidensWorker (major/soldier). Specimen code jtlc000016327. Photographer Jeremy Pilllow, uploaded by University of Utah. Owned by MCZC.


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.