Pheidole acutidens

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Pheidole acutidens
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. acutidens
Binomial name
Pheidole acutidens
(Santschi, 1922)

Pheidole acutidens casent0913258 p 1 high.jpg

Pheidole acutidens casent0913258 d 1 high.jpg

Specimen Labels

P. acutidens is a permanent workerless parasite of Pheidole nitidula. The discoverer of this remarkable species, Carlos Bruch (1931), has provided extensive notes on its anatomy, ecology, behavior, and life cycle. (Wilson 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Distribution based on Regional Taxon Lists

Neotropical Region: Argentina (type locality), Brazil.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Queen

Nomenclature

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

  • acutidens. Bruchomyrma acutidens Santschi, 1922d: 249, figs. A-D (q.) ARGENTINA. Bruch, 1931: 31 (m.). Combination in Pheidole: Wilson, 1984: 327. See also: Wheeler, W.M. 1937c: 52; Wilson, 2003: 260.

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): An extreme workerless social parasite of Pheidole nitidula, 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.


Pheidole acutidens Wilson 2003.jpg

Figure. Queen. Scale bars = 1 mm.

Type Specimen Labels

Type Material

ARGENTINA: La Plata, Buenos Aires, col. Carlos Bruch. Type locality: Alta Gracia (La Granja). Sierra de Córdoba, Argentina. Naturhistorisches Museum Basel - as reported in Wilson (2003)

Etymology

L acutidens, sharp-pointed tooth apparently referring to the reduced, acute mandible. (Wilson 2003)

References