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 group: fallax
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

Pheidole 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)

At a Glance • Workerless Inquiline  

 

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Latitudinal Distribution Pattern

Latitudinal Range: -27.484417° to -35.96375°.

   
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

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

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

Queen

Nomenclature

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

  • 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

References based on Global Ant Biodiversity Informatics

  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).