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Species: Pheidole guerrerana   Wilson, 2003 

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Taxonomic History (provided by Barry Bolton, 2022)

Pheidole guerrerana Wilson, 2003a: 156, figs. (s.w.) MEXICO. Neotropic. AntCat AntWiki HOL
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Guatemala, Honduras, Mexico, Nicaragua
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Distribution Notes:

Mexico to Nicaragua


This species occurs in cloud forest to high montane forests, up to 2200 m. Collections are known from baits and Winkler samples. A nest was observed in a clay bank behind a cabin, near a cloud forest edge.


The material from core Mesoamerica more or less matches the types from Guerrero, Mexico. BOLD records from Honduras and Nicaragua form a tight cluster. This cluster is near P. hyatti, and this species is possibly a southern extension of a P. hyatti clade.

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 guerreranaHNS new species

Types Mus. Comp. Zool. Harvard.

Etymology Named after the Mexican state of origin.

Diagnosis A member of the crassicornisHNS group distinguished by the following combination of traits.

Major: rugoreticulum mesad to the eyes very extensive, reaching from near the posterior clypeal border to midway between the eye and occiput; pilosity very dense and long, especially on the dorsal surfaces of the head and on the gastral tergites; anterior strip of pronotal dorsum transversely carinulate; postpetiole from above diamond-shaped.

Minor: pilosity extremely long over most of the body; humerus subangulate in dorsal-oblique view; occiput narrowed, with rudiment of a nuchal collar.

Measurements (mm) Holotype major: HW 1.28, HL 1.42, SL 1.02, EL 0.24, PW 0.66. Paratype minor: HW 0.58, HL 0.74, SL 0.94, EL 0.20, PW 0.42.

Color Major: head indistinctly bicolorous, with capsule anterior to eye level yellow and remainder yellowish brown; mesosoma and appendages yellowish brown; waist and gaster plain light brown.

Minor: indistinctly bicolorous, with head capsule posterior to anterior margin of eye as well as gaster and postpetiolar dorsum light brown; remainder of body dark yellow to brownish yellow. Range Known only from the type locality.

Biology The nest of the type colony was beneath a rock in a forest clearing. A winged queen was present on 31 July.

Figure Upper: holotype, major. Lower: paratype, minor. MEXICO: at road 3.5 km below Omilteme, Guerrero, 2000 m (Cornell University Field Party). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 29 times found in cloud forest, 1 times found in cloud forest edge, 4 times found in oak cloud forest, 4 times found in mesophyll forest, 2 times found in road in coffee farm, 1 times found in ridge oak forest litter, 2 times found in wet montane forest, 2 times found in edge of cloud forest, 2 times found in hardwood forest, 1 times found in montane rainforest clearing, ...

Found most commonly in these microhabitats: 30 times ex sifted leaf litter, 14 times at bait, 1 times nest in clay bank, 5 times beating vegetation, 1 times Malaise trap.

Collected most commonly using these methods: 19 times MiniWinkler, 14 times Baiting, 9 times MaxiWinkler, 1 times bait, 5 times Beating, 2 times Berlese/Winkler, 1 times Colecta directa, 1 times Search, 1 times direct collection, 1 times Malaise.

Elevations: collected from 880 - 2210 meters, 1796 meters average

Collect Date Range: collected between 1965-07-31 00:00:00.0 and 2012-09-08 00:00:00.0

Type specimens: paratype Pheidole guerrerana: jtlc000016396

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