Pheidole paranana

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Pheidole paranana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species group: diligens
Species: P. paranana
Binomial name
Pheidole paranana
Santschi, 1925

Identification

Casadei-Ferreira et al. (2020): Similar species are Pheidole geraesensis and Pheidole triconstricta. Majors of P. paranana have the vertexal lobe smooth and the anterior surface of head strongly sculptured with an areolaterugose patch between eye and frontal carina; and pronotal dorsum areolate with a reticulate-rugose patch anteriorly; P. geraesensis has the head almost entirely smooth; and P. triconstricta has the pronotal dorsum uniformly areolate throughout its distribution in Brazil (Mato Grosso do Sul, Minas Gerais, Paraná, Pernambuco, Rio Grande do Sul, Santa Catarina, São Paulo).

Minors of P. paranana have the clypeal disc overlain with several rugulae with interspaces areolate; P. geraesensis has the surface strongly areolate while in P. triconstricta this surface is smooth. This same key character occurs in sympatric populations of P. paranana and P. triconstricta in the state of Paraná (see Franco & Feitosa (2018) for the records).

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • paranana. Pheidole triconstricta var. paranana Santschi, 1925b: 13 (s.) BRAZIL.
    • Junior synonym of radoszkowskii: Wilson, 2003: 221.
    • Status as species: Casadei-Ferreira, Economo & Feitosa, 2020: 14.

Type Material

  • Lectotype (designated by Casadei-Ferreira, Economo & Feitosa, 2020: 14), major worker, Paraná, Rio Negro, Brazil, CASENT0913465, Naturhistorisches Museum, Basel.
  • Paralectotype (designated by Casadei-Ferreira, Economo & Feitosa, 2020: 14), minor worker, Paraná, Rio Negro, Brazil, CASENT0913466, Naturhistorisches Museum, Basel.

Taxonomic Notes

Casadei-Ferreira et al. (2020): This species was first described as a variety of Pheidole triconstricta by Santschi (1925). The author described P. paranana in comparison with Pheidole triconstricta rosariensis based on the denser head sculpture in P. paranana. The sculpture on the pronotal surface can also readily differentiate these species, while P. paranana has the dorsum reticulate rugose, P. rosariensis has the dorsum areolate. Wilson (2003) synonymized P. paranana under Pheidole radoszkowskii, without further justification. The head sculpture morphologically distinct in both species, with P. radoszkowskii head being densely sculptured and opaque, whereas the fronto-vertexal surface of the head is smooth in P. paranana.

Description

References