Pheidole caulicola

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

Pheidole caulicola inbiocri001282237 p 1 high.jpg

Pheidole caulicola inbiocri001282237 d 1 high.jpg

Specimen Labels

“Braulio Carrillo National Park (500 m): mature wet forest. Canopy of Licania sp. Colony in dead stick. Rara Avis: fresh treefall in primary forest. In 4-mm-diameter dead stick.” (Longino 1997).


See the description in the nomenclature section.

Keys including this Species


Costa Rica, 500–600 m. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Costa Rica (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.

  • caulicola. Pheidole caulicola Wilson, 2003: 393, figs. (s.w.) COSTA RICA.

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


A medium-sized yellow species with cornulate humerus in both major and minor. Close to Pheidole arhuaca, but with more prominent humeri, shorter antennal scapes, and narrower, rounder postpetiolar node in both castes as well as smooth central pronotal dorsum in the major.

See also the somewhat less similar Pheidole sagana, and further removed, Pheidole chalca, Pheidole nitidicollis, Pheidole mincana, Pheidole schmalzi and Pheidole tragica.

MEASUREMENTS (mm) Holotype major: HW 0.74, HL 0.80, SL 0.40, EL 0.08, PW 0.42. Paratype minor: HW 0.44, HL 0.50, SL 0.40, EL 0.06, PW 0.30.

COLOR Major: concolorous medium yellow.

Minor: concolorous dark yellow.

Pheidole caulicola Wilson 2003.jpg

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

Holotype Specimen Labels

Type Material

COSTA RICA: 17 km south of Puerto Viejo, Heredia Province, 10°18'N 84°02'W, 600 m, col. J. T. Longino. Instituto Nacional de Biodiversidad


L caulicola, stem-dwelling, alluding to the nest site.