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 group: tristis
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)

Latitudinal Distribution Pattern

Latitudinal Range: 25.68015° to -31.632389°.

     
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

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, Trinidad and Tobago, Venezuela.

Distribution based on AntMaps

AntMapLegend.png

Distribution based on AntWeb specimens

Check data from AntWeb

Countries Occupied

Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species.
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Estimated Abundance

Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species.
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Biology

Castes

Worker

Minor

Images from AntWeb

Pheidole fimbriata casent0178018 head 1.jpgPheidole fimbriata casent0178018 profile 1.jpgPheidole fimbriata casent0178018 dorsal 1.jpgPheidole fimbriata casent0178018 label 1.jpg
Worker. Specimen code casent0178018. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ALWC, Alex L. Wild Collection.

Queen

Images from AntWeb

Pheidole fimbriata casent0178016 head 1.jpgPheidole fimbriata casent0178016 profile 1.jpgPheidole fimbriata casent0178016 dorsal 1.jpgPheidole fimbriata casent0178016 label 1.jpg
Queen (alate/dealate). Specimen code casent0178016. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ALWC, Alex L. Wild Collection.

Male

Images from AntWeb

Pheidole fimbriata casent0178019 head 1.jpgPheidole fimbriata casent0178019 profile 1.jpgPheidole fimbriata casent0178019 dorsal 1.jpgPheidole fimbriata casent0178019 profile 2.jpgPheidole fimbriata casent0178019 profile 3.jpgPheidole fimbriata casent0178019 label 1.jpg
Male (alate). Specimen code casent0178019. Photographer April Nobile, uploaded by California Academy of Sciences. Owned by ALWC, Alex L. Wild Collection.

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.
  • 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.

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).

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)

References

References based on Global Ant Biodiversity Informatics

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