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Species: Pheidole acutidens   (Santschi, 1922) 

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Taxonomic History (provided by Barry Bolton, 2020)

Bruchomyrma acutidens Santschi, 1922e PDF: 249, figs. A-D (q.) ARGENTINA. Neotropic. AntCat AntWiki HOL

Taxonomic history

Bruch, 1931 PDF: 31 (m.).
Combination in Pheidole: Wilson, 1984b PDF: 327.
See also: Wheeler, 1937c PDF: 52; Wilson, 2003a: 260.
// Distribution


  Geographic regions (According to curated Geolocale/Taxon lists):
    Americas: Argentina
  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 acutidensHNS (Santschi)

Bruchomyrma acutidensHNS Santschi 1922e: 249. Combination with PheidoleHNS by Wilson 1984b: 327. Types Naturhist. Mus. Basel.

etymology L acutidensHNS, sharp-pointed tooth apparently referring to the reduced, acute mandible.

diagnosis An extreme workerless social parasite of Pheidole nitidulaHNS, with adaptations that make it unique within the genus. Queen: with 9- to 11-segmented antennae and minute, falcate toothless mandibles that taper to needle-sharp points. Male: pupiform, with mandibles vestigial or absent.

measurements (mm) Syntype queen: HW 0.40, HL 0.42, SL 0.72, EL 0.12, PW 0.58.

Color Queen: yellowish brown.

Range Known only from the type locality.

Biology P. acutidensHNS is a permanent workerless parasite of Pheidole nitidulaHNS. The discoverer of this remarkable species, Carlos Bruch (1931), has provided extensive notes on its anatomy, ecology, behavior, and life cycle.

Figure Queen. ARGENTINA: La Plata, Buenos Aires (Carlos Bruch). Type locality: Alta Gracia (La Granja). Sierra de Cordoba, Argentina. Scale bar = 1 mm.

Specimen Habitat Summary

Type specimens: syntype of Pheidole acutidens: casent0913258

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