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Species: Pheidole caulicola   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2023)

Pheidole caulicola Wilson, 2003a: 393, figs. (s.w.) COSTA RICA. Neotropic. Primary type information: Primary type material: holotype major worker. Primary type locality: Costa Rica: Heredia, 17 km. S Puerto Viejo, 10°18’N, 84°02’W, 600 m. (J.T. Longino). Primary type depository: INBC. Secondary type information: Secondary type material: 1 paratype minor worker. Secondary type locality: same as for holotype. Secondary type depository: INBC. Type notes: Details of paratype castes and their numbers are not given. AntCat AntWiki HOL

Taxonomic history

// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Costa Rica
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Costa Rica.


Natural History:

Arboreal in mid-elevation rainforest; nests in dead stems.

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press

Pheidole caulicolaHNS new species

Types INBio.

Etymology L caulicolaHNS, stem-dwelling, alluding to the nest site.

diagnosis A medium-sized yellow species with cornulate humerus in both major and minor.

Close to arhuacaHNS, 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 saganaHNS, and further removed, chalcaHNS, chalcoidesHNS, mincanaHNS, schmalziHNS, and tragicaHNS.

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.

Range Costa Rica, 500-600 m.

BIOLOGY "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." (J. T. Longino 1997.)

Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: 17 km south of Puerto Viejo, Heredia Province, 10A° 18x4 84A°02W, 600 m (J. T. Longino). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in primary wet forest, 1 times found in wet forest.

Found most commonly in these microhabitats: 1 times in dead stick in fresh treefall, 1 times in dead stem in canopy of Licania.

Elevations: collected from 500 - 700 meters, 675 meters average

Collect Date Range: collected between 1924-07-29 00:00:00.0 and 1985-09-11 00:00:00.0

Type specimens: holotype major Pheidole caulicola: inbiocri001282237; paratype Pheidole caulicola: casent0624249, casent0624250, inbiocri001282236, inbiocri002279846

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