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Species: Pheidole obnixa   Forel, 1912 

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Taxonomic History (provided by Barry Bolton, 2019)

Pheidole arciruga r. obnixa Forel, 1912g PDF: 236 (w.) ARGENTINA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Forel, 1913m PDF: 231 (s.q.).
Combination in Pheidole (Elasmopheidole): Bruch, 1914 PDF: 219.
Raised to species: Santschi, 1925e PDF: 157.
See also: Wilson, 2003A: 138.


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Argentina, Costa Rica
  Biogeographic regions (According to curated Bioregion/Taxon lists):

Taxonomic Treatment (provided by Plazi)

Treatment Citation: Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press

Pheidole obnixaHNS Forel

Pheidole arciruga r. obnixaHNS Forel 1913m: 231. Raised to species level by Santschi 1925e: 157. Types Mus. Hist. Nat. Geneve.

Etymology L obnixaHNS, steadfast, resolute, allusion unknown.

diagnosis Similar to aberransHNS, cavifronsHNS, and longiorHNS, distinguished as follows.

Major: head comparatively short (Head Length/Head Width 1.2 mm, the same as aberransHNS, much shorter than cavifronsHNS and longiorHNS)', pronotal dorsum covered by widely spaced longitudinal carinulae, with those near the midline curving outward toward the rear; occiput covered by transverse carinulae; humerus, mesonotal convexity, and propodeal spines well developed; a low lobe present on profile of postpetiolar venter. Minor: pronotum covered by semicircular carinulae.

Measurements (mm) Paralectotype major (Rosario de Santa Fe, Argentina): HW 1.20, HL 1.34, SL 0.50, EL 0.14, PW 0.60. Lectotype minor (Buenos Aires): HW 0.52, HL 0.54, SL 0.40, EL 0.08, PW 0.34. color Major: concolorous light brown.

Minor: mesosomal waist yellowish brown, head and gaster light brown. Range Buenos Aires, Cordoba, and Santa Fe, in Argentina. Biology Unknown.

Figure Upper: paralectotype, major (Rosario de Santa Fe, Argentina; only tentatively associated with lectotype minor). Lower: lectotype, minor (Buenos Aires, Argentina). Scale bars = 1 mm.

Specimen Habitat Summary

Type specimens: Lectotype of Pheidole obnixa: casent0908304; paralectotype of Pheidole obnixa: casent0908305

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