Pheidole guilelmimuelleri

Nothing is known about the biology of guilelmimuelleri.

Identification
See the description in the nomenclature section.

Distribution
From Wilson (2003): Santa Catarina, Brazil. Also recorded from Misiones, Argentina, by Kempf (1972b). (Wilson 2003)

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina, Brazil, Colombia.

Nomenclature

 *  guilelmimuelleri. Pheidole guilelmimuelleri Forel, 1886a: 210 (s.w.) BRAZIL. Mayr, 1887: 607 (q.); Wheeler, G.C. & Wheeler, J. 1972b: 243 (l.). Senior synonym of gustavi: Wilson, 2003: 703.
 * gustavi. Pheidole guilelmimuelleri var. gustavi Forel, 1911c: 302 (s.w.q.) BRAZIL. Junior synonym of guilelmimuelleri: Wilson, 2003: 703.

Description
DIAGNOSIS From Wilson (2003): A large reddish brown species, similar to Pheidole antillana of the Lesser Antilles and Pheidole avia, Pheidole bucculenta, Pheidole hetschkoi, Pheidole heyeri, Pheidole hortonae, Pheidole mamore, Pheidole praeses, Pheidole rhytifera and Pheidole sarcina 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 Pheidole bucculenta, 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.



'''Figure. Upper: lectotype, major. Lower: paralectotype, minor. Scale bars = 1 mm.'''

Type Material
BRAZIL: Blumenau, Santa Catarina, col. William Müller. - as reported in Wilson (2003)

Etymology
Named after the collector, William (Guilelmi) Müller. (Wilson 2003)

References based on Global Ant Biodiversity Informatics

 * Bruch C. 1914. Catálogo sistemático de los formícidos argentinos. Revista del Museo de La Plata 19: 211-234.
 * Cuezzo, F. 1998. Formicidae. Chapter 42 in Morrone J.J., and S. Coscaron (dirs) Biodiversidad de artropodos argentinos: una perspectiva biotaxonomica Ediciones Sur, La Plata. Pages 452-462.
 * Drose W., L. R. Podgaiski, C. Fagundes Dias, M. de Souza Mendonca. 2019. Local and regional drivers of ant communities in forest-grassland ecotones in South Brazil: A taxonomic and phylogenetic approach. Plos ONE 14(4): e0215310.
 * Emery C. 1906. Studi sulle formiche della fauna neotropica. XXVI. Bullettino della Società Entomologica Italiana 37: 107-194.
 * Favretto M. A., E. Bortolon dos Santos, and C. J. Geuster. 2013. Entomofauna from West of Santa Catarina State, South of Brazil. EntomoBrasilis 6 (1): 42-63.
 * Forel A. 1911. Ameisen des Herrn Prof. v. Ihering aus Brasilien (Sao Paulo usw.) nebst einigen anderen aus Südamerika und Afrika (Hym.). Deutsche Entomologische Zeitschrift 1911: 285-312.
 * Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
 * Kusnezov N. 1952. El género Pheidole en la Argentina (Hymenoptera, Formicidae). Acta Zoologica Lilloana 12: 5-88.
 * Kusnezov N. 1978. Hormigas argentinas: clave para su identificación. Miscelánea. Instituto Miguel Lillo 61:1-147 + 28 pl.
 * Rosa da Silva R. 1999. Formigas (Hymenoptera: Formicidae) do oeste de Santa Catarina: historico das coletas e lista atualizada das especies do Estado de Santa Catarina. Biotemas 12(2): 75-100.
 * Santschi F. 1923. Pheidole et quelques autres fourmis néotropiques. Annales de la Société Entomologique de Belgique 63: 45-69.
 * Ulyssea M.A., C. E. Cereto, F. B. Rosumek, R. R. Silva, and B. C. Lopes. 2011. Updated list of ant species (Hymenoptera, Formicidae) recorded in Santa Catarina State, southern Brazil, with a discussion of research advances and priorities. Revista Brasileira de Entomologia 55(4): 603-611.
 * Vittar, F. 2008. Hormigas (Hymenoptera: Formicidae) de la Mesopotamia Argentina. INSUGEO Miscelania 17(2):447-466