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Species: Pheidole vallicola   Wheeler, 1915 

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Taxonomic History (provided by Barry Bolton, 2020)

Pheidole crassicornis subsp. vallicola Wheeler, 1915b PDF: 409 (s.w.) U.S.A. Nearctic. AntCat AntWiki HOL

Taxonomic history

Raised to species: Creighton, 1950a PDF: 191.
See also: Wilson, 2003a: 162.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Mexico, United States
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

collected from the Chiricahua Mtns, Cochise Co.

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 vallicola WheelerHNS

Pheidole crassicornis subsp. vallicola WheelerHNS 1915b: 409. Raised to species level by Creighton 1950a: 191. Types Mus. Comp. Zool. Harvard.

Etymology L vallicolaHNS, valley dweller, referring to the habitat of the type colony.

diagnosis A member of the crassicornisHNS group, similar to crassicornisHNS, diversipilosaHNS, porculaHNS, and tetraHNS, but differing by the following combination of traits.

Major: pilosity consisting of sparse, very long hairs (some on first gastral tergite are 2X the maximum eye length); head in side view tapered toward occiput; rugoreticulum forms a broad swath from antennal fossa to eye on each side; carinulae along midline of dorsum of head continue to occiput; pronotum sparsely foveolate and feebly shining on sides, smooth and shiny on dorsum; postpetiole from above laterally subangulate.

Minor: petiolar node from side thin, and tapered toward apex; pilosity sparse, as illustrated; dorsum of head (except for frontal triangle and middle section of clypeus), all of mesosoma, and most of waist foveolate and opaque. Measurements (mm) Lectotype major: HW 1.34, HL 1.44, SL 0.80, EL 0.20, PW 0.64. Paralectotype minor: HW 0.64, HL 0.70, SL 0.82, EL 0.14, PW 0.44.

color Major: body light reddish brown except for gaster, which is a slightly contrasting medium reddish brown. Minor: concolorous medium reddish brown.

Range Recorded by Stefan Cover in numerous collections at 1200-1900 m in the following mountain ranges of southeastern Arizona: Chiricahua, Dragoon, Huachuca, Pajarito, Pinal, and Sierra Ancha.

Biology Stefan Cover (unpublished collection notes) found vallicolaHNS to favor creek banks and open woodland with a wide range of species composition, from ponderosa pine to oak, pine-oak-juniper, and oak-mesquite-sumac. Nests were usually under stones in either shade or exposed areas, although occasionally they had been constructed in open soil.

Figure Upper: lectotype, major. Lower: paralectotype, minor. ARIZONA: Miller Canyon, Huachuca Mts., southeastern Arizona (W. M. Wheeler). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in desert canyon, riparian., 1 times found in oak pine juniper woodland, 1 times found in Chihuahua Pine for. 50-70' tall with sparse Gray+Emory Oak understory to 30' tal, 3 times found in oak-juniper woodland, 2 times found in oak-pine-juniper woodland, 1 times found in pine-oak woodland, 1 times found in oak, juniper along desert wash.

Found most commonly in these microhabitats: 4 times under stone, 1 times nest under stone in soil, 1 times Under rock in partial shade., 1 times nest in soil beneath rock, 1 times nest under stone, 1 times under stone, tending aphids on root of Quercus emoryi sapling.

Collected most commonly using these methods: 3 times search.

Elevations: collected from 1200 - 2290 meters, 1752 meters average

Collect Date Range: collected between 1951-04-04 and 2015-08-12

Type specimens:

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