Pheidole rosae

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Pheidole rosae
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. rosae
Binomial name
Pheidole rosae
Forel, 1901


MCZ-ENT00020699 Pheidole silvestri hal.jpg

MCZ-ENT00020699 Pheidole silvestri had.jpg

Type Specimen Label

Synonyms

An inhabitant of subtropical forests. Winged queens and males were present in a nest near Tapia, Tucumán, on 25 January, col. W. L. Brown. (Wilson, 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

From Wilson (2003): Recorded from Santa Catarina (type locality) and, as the synonymous “silvestrii,” from Tucumán (type locality), Buenos Aires, and Córdoba, Argentina (Kempf 1972b; W. L. Brown).

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Brazil (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Kempf (1974) reported that Oxyepoecus bruchi were collected with P. rosae in Argentina. An observation nest created from a collection of rosae that contained both species found no hostility between these ants.

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • rosae. Pheidole rosae Forel, 1901h: 63 (s.) BRAZIL. Senior synonym of silvestrii: Wilson, 2003: 742.
  • silvestrii. Pheidole silvestrii Emery, 1906c: 146 (s.w.q.) ARGENTINA. Junior synonym of rosae: Wilson, 2003: 742.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

From Wilson (2003): DIAGNOSIS Similar in various characters to Pheidole guayasana, Pheidole pidax, Pheidole rosula and Pheidole securigera, distinguished as follows.

Major: reddish yellow; frontal lobes extended forward as conspicuous lobes, as seen in side view; wide, shallow antennal scrobe present; promesonotum descends abruptly and obliquely to metanotum; postpetiolar node spinose; portions of anterior pronotal dorsum and propodeal dorsum carinulate, and rest of mesosoma smooth and shiny.

Minor: several carinulae extend from frontal lobes to occiput, center of occiput carinulate, and rest of posterior dorsal head surface smooth; propodeal spines reduced to denticles.

MEASUREMENTS (mm) Syntype major of synonymous silvestrii: HW 1.40, HL 1.52, SL 0.60, EL 0.16, PW 0.72. Syntype minor of synonymous silvestrii: HW 0.62, HL 0.64, SL 0.58, EL 0.12, PW 0.42.

COLOR Major: concolorous reddish yellow.

Minor: concolorous plain medium yellow.


Pheidole rosae Wilson 2003.jpg

Figure. Upper: syntype, major of synonymous Pheidole silvestrii Emery (Santa Catarina, Brazil). Lower: syntype, minor of synonymous P. silvestrii Emery (Quebrada Cainzo, Tucumán, Argentina). Scale bars = 1 mm.

Type Material

Brazil: Santa Catarina. Naturhistorisches Museum Wien, Vienna - as reported in Wilson (2003)

Etymology

Eponymous. (Wilson 2003)

References

  • Forel, A. 1886b. Espèces nouvelles de fourmis américaines. Ann. Soc. Entomol. Belg. 30:xxxviii-xlix. (page xkii, primary junior homonym of gertrudae)
  • Forel, A. 1901m. Formiciden des Naturhistorischen Museums zu Hamburg. Neue Calyptomyrmex-, Dacryon-, Podomyrma- und Echinopla-Arten. Mitt. Naturhist. Mus. Hambg. 18: 43-82 (page 63, soldier described)
  • Kempf, W. W. 1972. Catálogo abreviado das formigas da região Neotropical. Stud. Entomol. 15: 3–344.
  • Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 592, Replacement name for gertrudae)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 742, fig. major, minor described, Senior synonym of silvestrii)