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Species: Pheidole madrensis   Wilson, 2003 

Classification:
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Taxonomic History (provided by Barry Bolton, 2018)

Pheidole madrensis Wilson, 2003A: 321, figs. (s.w.) MEXICO. AntCat AntWiki HOL

Distribution:

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

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 madrensisHNS new species

Types Mus. Comp. Zool. Harvard.

etymology L madrensisHNS, referring to the Sierra Madre Occidental, the mountains of origin of the type colony.

Diagnosis A member of the fallaxHNS group similar in various traits to the species listed in the heading above, distinguished as follows. Major: propodeal spines equilaterally triangular in side view; rugoreticulum of head a band from eye to antennal fossa; carinulae on head extend more than halfway from level of eyes to level of occiput; occipital margin in full-face view strongly convex; dorsal pronotal profile in dorsal-oblique view faintly bilobous; postpetiole from above elliptical, with angulate lateral borders; anterior and lateral pronotal margins carinulate.

Minor: a rugula stretches across the anterior rim of the middle clypeal segment; propodeal spines equilaterally triangular in side view; pronotum smoothly convex in dorsal-oblique view; occiput shallowly convex. measurements (mm) Holotype major: HW 1.24, HL 1.36, SL 0.84, EL 0.20, PW 0.66. Paratype minor: HW 0.64, HL 0.74, SL 0.84, EL 0.18, PW 0.44. color Major: body light reddish brown, appendages dark yellow.

Minor: body rich dark reddish brown, antennae plain medium brown, other appendages reddish yellow.

Range Known only from the type locality.

Biology Unknown.

figure Upper: holotype, major. Lower: paratype, minor. MEXICO: 120 km south of Creel, Barranca de Rio Batopilas, Chihuahua, 1000 m (W. Bell and J. Reddell). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in agricultural zone, 1 times found in Caña de azúcar.

Found most commonly in these microhabitats: 1 times en la raíz de una cepa de caña muerta.

Collected most commonly using these methods: 1 times Directo, 1 times pitfall.

Elevations: collected from 870 - 1990 meters, 1430 meters average

Type specimens:



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