Pheidole pubiventris

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Pheidole pubiventris
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. pubiventris
Binomial name
Pheidole pubiventris
Mayr, 1887

Pheidole pubiventris jtlc000007355 profile 1.jpg

Pheidole pubiventris jtlc000007355 dorsal 1.jpg

Specimen labels

Synonyms

This species occurs in open areas and synanthropic habitats. This species appears to have a broad range, as often occurs in species favoring synanthropic habitats, but it is also infrequently collected and, among the few collections, shows a high degree of variability. A winged queen was collected at El Campano in June. (Wilson 2003, Longino 2009)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Southern Brazil to Mexico.

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality), Colombia, Costa Rica, Ecuador, Guatemala, Mexico.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Nomenclature

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

  • pubiventris. Pheidole pubiventris Mayr, 1887: 595 (s.), 604 (w.), 607 (q.) BRAZIL. Senior synonym of cearensis, nevadensis, timmii: Wilson, 2003: 218; of indistincta, variegata: Longino, 2009: 66.
  • variegata. Pheidole pubiventris subsp. variegata Emery, 1896g: 72 (s.w.q.) COSTA RICA. Forel, 1908b: 54 (m.). Raised to species: Wilson, 2003: 245. Junior synonym of pubiventris: Longino, 2009: 66.
  • indistincta. Pheidole indistincta Forel, 1899c: 75 (s.w.) COSTA RICA. Junior synonym of pubiventris: Longino, 2009: 66. See also: Wilson, 2003: 196.
  • cearensis. Pheidole pubiventris r. cearensis Forel, 1901e: 353 (s.w.) BRAZIL. Junior synonym of pubiventris: Wilson, 2003: 218.
  • nevadensis. Pheidole pubiventris var. nevadensis Forel, 1901e: 353 (s.w.q.) COLOMBIA. Junior synonym of pubiventris: Wilson, 2003: 218.
  • timmii. Pheidole pubiventris r. timmii Forel, 1901h: 62 (s.w.) U.S.A. Incertae sedis in Myrmicinae: Smith, D.R. 1979: 1414. Junior synonym of pubiventris: Wilson, 2003: 218.

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): A medium-sized brown member of the diligens group with relatively sparse, extremely long, erect to suberect curving hairs over the dorsa of the head and body.

Major: sculpturing of head consists entirely of carinulae, which are confined to the anterior half of the head capsule; promesonotal profile trilobous and pronotal humerus subangulate in dorsal-oblique view.

Minor: humerus angulate; pronotum mostly foveolate and opaque.

Similar to Pheidole longiseta, Pheidole sensitiva and Pheidole variegata (= Pheidole pubiventris); differing in many details of body form, sculpturing, and pilosity, as illustrated.

See also the less similar Pheidole blumenauensis, Pheidole rochai, Pheidole seeldrayersi and Pheidole vafra.

Majors from Colombia have shorter pilosity and more angulate humeri than the Brazilian series; and thus may represent a distinct species.

MEASUREMENTS (mm) Syntype major (Mus. Comp. Zool. Harvard): HW 1.14, HL 1.12, SL 0.86, EL 0.22, PW 0.56. Syntype minor (Mus. Comp. Zool. Harvard): HW 0.54, HL 0.68, SL 0.86, EL 0.16, PW 0.40.

COLOR Major: light reddish yellow (probably a callow or faded; fresher specimens are blackish brown).

Minor: body medium brown, with light brown appendages (fresher specimens are blackish brown).


Pheidole pubiventris Wilson 2003.jpg

Figure. Upper: syntype, major. Lower: syntype, minor. The specimens illustrated are from the Museum of Comparative Zoology. Scale bars = 1 mm.

Type Material

Longino (2009):

Syntype major worker, minor worker, queen: Brazil, Santa Catarina (Hetschko) NMW, Museum of Comparative Zoology (examined).

Pheidole pubiventris subsp. variegata Lectotype major worker (here designated, as labeled by Wilson 2003) and associated paralectotype minor worker, queen: Costa Rica, San José (Alfaro) Musee d'Histoire Naturelle Genève (not examined).

Pheidole indistincta Lectotype major worker (here designated, as labeled by Wilson 2003): Costa Rica (Tonduz) MHNG (examined).

Pheidole pubiventris r. cearensis Syntype major, minor worker: Brazil, Ceará, Biturité (Schmitt) (not examined).

Pheidole pubiventris r. nevadensis Syntype major, minor worker, queen: Colombia, Magdalena, San Antonio, >1000m elevation (Forel) (not examined).

Pheidole pubiventris r. timmii Syntype major, minor worker: U.S.A., Louisiana, New Orleans, "probably of Mexican origin" (Timm) (not examined).

Etymology

L pubiventris, hairy belly, evidently alluding to the conspicuously long pilosity of the gaster. (Wilson 2003)

References

  • Longino, J.T. 2009. Additions to the taxonomy of New World Pheidole. Zootaxa 2181: 1-90. PDF
  • Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 595, 604, 607, soldier described, worker described, queen described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 218, Senior synonym of cearensis, nevadensis, and timmii, fig. major, minor described)