Pheidole fimbriata

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Pheidole fimbriata
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. fimbriata
Binomial name
Pheidole fimbriata
Roger, 1863

Pheidole fimbriata casent0178017 profile 1.jpg

Pheidole fimbriata casent0178017 dorsal 1.jpg

Specimen labels

Synonyms

An inhabitant of tropical forests. At La Selva, Costa Rica, Longino (1997) found large numbers of minors and majors foraging at night over the ground from a soil nest. An incipient colony was discovered in a dead stick on the forest floor. (Wilson 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

One of the most widespread of all Neotropical ant species, recorded from Veracruz, Mexico, through Central and South America (including Trinidad) to Misiones, northern Argentina. (Wilson 2003)

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname (type locality), Trinidad and Tobago, Venezuela.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Queen

Male

Nomenclature

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

  • fimbriata. Pheidole fimbriata Roger, 1863a: 196 (s.) "Rio Paraguay". Mayr, 1887: 598 (w.).
    • Combination in P. (Macropheidole): Emery, 1915i: 190.
    • Senior synonym of diversa, smithii (unnecessary replacement name): Kempf, 1965: 183.
    • Senior synonym of tucumana: Wilson, 2003: 690.
    • Senior synonym of soesilae: Longino, 2019: 35.
  • diversa. Pheidole diversa Smith, F. 1860c: 74 (s.w.) BRAZIL. Junior synonym of fimbriata: Kempf, 1965: 183.
  • smithii. Pheidole smithii Dalla Torre, 1892: 90. [Unnecessary replacement name for diversa.] Junior synonym of fimbriata: Kempf, 1965: 183.
  • tucumana. Pheidole fimbriata var. tucumana Forel, 1913l: 228 (s.) ARGENTINA. Forel, 1915c: 355 (w.). Combination in P. (Macropheidole): Emery, 1921f: 81. Junior synonym of fimbriata: Wilson, 2003: 690.
  • soesilae. Pheidole soesilae Makhan, 2007d: 1, figs. 1, 2 (s.) SURINAM.
    • Junior synonym of fimbriata: Longino, 2019: 35.

Type Material

  • Pheidole fimbriata: Syntype, worker(s), "Rio Paraguay", possibly in either Mus. Naturkunde Humboldt-Univ. Berlin, or Paris Museum; not located by Wilson (2003).
  • Pheidole soesilae: Holotype, worker (major), Mt. Kasikasima, Suriname, 27.3.1996, D. Makhan.

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 A very large, small-eyed species immediately recognizable in the major by the dense fringe of short, suberect to erect hairs on the petiolar peduncle and entire venters of the petiole and postpetiole; the concave profile of the posterior dorsum of the head in side view; the large, stout propodeal spines; and the spinose postpetiolar node.

Minor: very small eyes, angular humerus in dorsal-oblique view, and with a fringe of short hairs on venter of petiole.

MEASUREMENTS (mm) Major (Benjamin Constant, Brazil): HW 2.60, HL 2.88, SL 1.20, EL 0.20, PW 1.06. Minor (Benjamin Constant): HW 0.84, HL 0.90, SL 0.84, EL 0.06, PW 0.52.

COLOR Major: medium to dark reddish brown.

Minor: concolorous brownish yellow.


Pheidole fimbriata Wilson 2003.jpg

Figure. Upper: major. Lower: minor. BRAZIL: Benjamin Constant, Amazonas, col. W. L. Brown. Scale bars = 1 mm.

Etymology

L fimbriata, fringed, probably alluding to the pilosity on the venter of the waist. (Wilson 2003)

P. soesilae, this species is named after my wife, Soesila Makhan.

References

  • Emery, C. 1915g. Noms de sous-genres et de genres proposés pour la sous-famille des Myrmicinae. Modifications à la classification de ce groupe (Hymenoptera Formicidae). Bull. Soc. Entomol. Fr. 1915: 189-192 (page 190, Combination in P. (Macropheidole))
  • Kempf, W. W. 1965. Nota preliminar sôbre algumas formigas neotrópicas, descritas por Frederick Smith (Hymenoptera, Formicidae). Rev. Bras. Biol. 25: 181-186 (page 183, senior synonym of diversa and smithii (unnecessary replacement name))
  • Mayr, G. 1887. Südamerikanische Formiciden. Verh. K-K. Zool.-Bot. Ges. Wien 37: 511-632 (page 598, worker described)
  • Roger, J. 1863a. Die neu aufgeführten Gattungen und Arten meines Formiciden-Verzeichnisses nebst Ergänzung einiger früher gegebenen Beschreibungen. Berl. Entomol. Z. 7: 131-214 (page 196, soldier described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 690, fig. major, minor described, Senior synonym of tucumana)

References based on Global Ant Biodiversity Informatics

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