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Species: Pheidole arboricola   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2020)

Pheidole arboricola Wilson, 2003a: 372, figs. (s.w.) COSTA RICA. Neotropic. AntCat AntWiki HOL
// Distribution


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

Distribution Notes:

Costa Rica (Atlantic lowlands).


Natural History:

This species occurs in young to mature forest. It is arboreal, and nests opportunistically in plant cavities such as hollow dead stems and ant-plant cavities.

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 arboricolaHNS new species

Types INBio.

etymology L arboricolaHNS, tree-dwelling, alluding to the arboricolous nests of the species.

Diagnosis A very small species, close to amazonicaHNS, mackayiHNS, minutulaHNS, and especially quercicolaHNS, distinguished in the major from these species by its subangulate (as opposed to lobate) humerus in dorsal-oblique view, rounded lateral borders of the postpetiole, and bicolorous head.

Measurements (mm) Holotype major: HW 0.76, HL 0.84, SL 0.40, EL 0.06, PW 0.40. Paratype minor: HW 0.42, HL 0.46, SL 0.40, EL 0.06, PW 0.26.

color Major: head capsule anterior to eyes, along with a fuzzy circular spot in the middle of the capsule dorsum, light brown. Waist and gaster also light brown; rest of body and appendages dark yellow. Minor: body medium brown, tarsi yellow, rest of appendages light brown.

Range Atlantic lowlands of Costa Rica, up to 500 meters elevation.

Biology John T. Longino (1997) reports arboricolaHNS as a resident of moist mature and second-growth forest, nesting in the hollow branches and under the dead bark variously of Bauhinia, Cecropia, Stryphnodendron, and other trees.

Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: La Selva Biological Station, near Puerto Viejo (J. T. Longino). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 3 times found in wet forest, 2 times found in rainforest, 2 times found in STR 2050, 1 times found in La Selva, 2 times found in CCL 700m., 1 times found in roadside (edge of gardens), 2 times found in Entre LOC y SAT, 2 times found in SAT, 2 times found in lowland rainforest, 2 times found in montane wet forest, ...

Found most commonly in these microhabitats: 3 times NOTES FOR COLLECTIONS #3291-s TO #3315 WERE LOST. NOTES WERE RECONSTRUCTED FROM, 1 times ex Cordia alliodora, 1 times ex dead twig of small tree, 1 times ex Cecropia, 1 times nest in dead stick in recent branchfall, 1 times N-S leg of LEP; recent treefall; small Stryphnodendron and some other tree; the, 1 times Sura, 1 times One of the ALAS fogging samples, from Pentaclethra macroloba crown., 1 times One of the ALAS fogging samples, from Carapa guianensis crown., 1 times nest in dead stem in canopy, Pheidole, Huertos area, colony in internode of Cecropia obtusifolia times JW930414-3, ...

Collected most commonly using these methods: 19 times Fogging, 4 times Search, 5 times Malaise, 1 times Foggin.

Elevations: collected from 50 - 835 meters, 129 meters average

Collect Date Range: collected between 1985-03-18 and 2015-07-12

Type specimens: holotype major Pheidole arboricola: inbiocri001237448; Paratype Pheidole arboricola: casent0610092, casent0610093, inbiocri001218024, inbiocri001218031, inbiocri001218049, inbiocri001218097, inbiocri001218129, inbiocri001238628, inbiocri001271993, inbiocri001271995, inbiocri001271996, inbiocri001271997, inbiocri001281161, inbiocri001281162, inbiocri001281163, inbiocri002279943, inbiocri002279945

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