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Species: Pheidole guilelmimuelleri   Forel, 1886 

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Taxonomic History (provided by Barry Bolton, 2020)

Pheidole guilelmimuelleri Forel, 1886a PDF: 210 (s.w.) BRAZIL. Neotropic. AntCat AntWiki HOL

Taxonomic history

Senior synonym of Pheidole gustavi: Wilson, 2003A: 703.


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

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 guilelmimuelleriHNS Forel

Pheidole guilelmimuelleriHNS Forel 1886a: 210. Syn.: Pheidole guilelmimuelleri var. gustaviHNS Forel 191 le: 302, n.syn. Raised to species level in this monograph: feraHNS.

Types Mus. Hist. Nat. Geneve.

Etymology Named after the collector, William (Guilelmi) Muller.

diagnosis A large reddish brown species, similar to antillanaHNS of the Lesser Antilles and aviaHNS, bucculentaHNS, hetschkoiHNS, heyeriHNS, hortonaeHNS, mamoreHNS, praesesHNS, rhytiferaHNS, and sarcinaHNS of South America.

Major: propodeal spines long, stout, and nearly erect; postpetiole cornulate; sculpturing of dorsal surface of head consists entirely of longitudinal carinulae, which are confined to the anterior two-thirds of the head capsule except for two carinulae that proceed to the occiput along the midline; promesonotal dorsum almost completely covered by transverse carinulae. The major is very similar to that of bucculentaHNS, but the minor is easily distinguished, as illustrated.

Minor: occiput, sides of head mesad to the eyes, and lateral margins of the pronotal dorsum rugoreticulate; remainder of dorsal surface of head weakly carinulate; propodeal spines long, thin, and erect.

Measurements (mm) Lectotype major: HW 2.10, HL 2.12, SL 0.98, EL 0.20, PW 1.02.

Paralectotype minor: HW 0.82, HL 0.84, SL 0.94, EL 0.14, PW 0.54.

Color Major: concolorous light reddish brown.

Minor: body yellowish brown, appendages medium to dark yellow.

Range Santa Catarina, Brazil. Also recorded from Misiones, Argentina, by Kempf (1972b).

Biology Unknown.

Figure Upper: lectotype, major. Lower: paralectotype, minor. BRAZIL: Blumenau, Santa Catarina (William Midler). Scale bars = 1 mm.

Specimen Habitat Summary

Found most commonly in these habitats: 1 times found in orchard near a stream.

Found most commonly in these microhabitats: 1 (wingless0 female. Passages apparently about 4 inches long. Workers minor rather active times nest under turf on a dry rock. About 300 ants of which perhaps 1/8 work workers major, numerous males.

Elevations: collected at 91 m

Type specimens: Lectotype of Pheidole guilelmimuelleri: casent0908166; paralectotype of Pheidole guilelmimuelleri: casent0908167; syntype of Pheidole guilelmimuelleri gustavi: casent0908168

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