Pheidole xyston

AntWiki: The Ants --- Online
Pheidole xyston
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. xyston
Binomial name
Pheidole xyston
Wilson, 2003

Philip Ward took the San Andrés Tuxtla series from a rotten log in cloud forest. (Wilson 2003)

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

From Wilson (2003): Known only from the type series and from a second series collected 11 km north of San Andrés Tuxtla, Veracruz, at 1400 m, col. P. S. Ward.

Latitudinal Distribution Pattern

Latitudinal Range: 19.5116667° to 17.133°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: Guatemala, Mexico (type locality).

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

Nomenclature

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

  • xyston. Pheidole xyston Wilson, 2003: 535, figs. (s.w.) MEXICO.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

DIAGNOSIS Similar to Pheidole ceibana, Pheidole lemnisca, Pheidole peltastes, Pheidole perkinsi, Pheidole renae and Pheidole tayrona, distinguished in the major by the rugoreticulate occiput, shallowly concave posterior cephalic profile, cornulate humerus, and posteriorly curving propodeal spine; and in the minor by the toothed humerus and relatively long, straight propodeal spine.

MEASUREMENTS (mm) Holotype major: HW 0.70, HL 0.78, SL 0.44, EL 0.10, PW 0.40. Paratype minor: HW 0.42, HL 0.42, SL 0.40, EL 0.06, PW 0.26.

COLOR Major: mandibles and body medium brown, rest of appendages yellowish brown.


Pheidole xyston Wilson 2003.jpg

Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.

Type Material

MEXICO: 7 km north of Huatusco, Veracruz, 1280 m, col. A. Newton. Museum of Comparative Zoology

Etymology

Gr xyston, shaft of a spear, referring to the long propodeal spine of the minor.

References

References based on Global Ant Biodiversity Informatics

  • Dattilo W. et al. 2019. MEXICO ANTS: incidence and abundance along the Nearctic-Neotropical interface. Ecology https://doi.org/10.1002/ecy.2944
  • Longino J. et al. ADMAC project. Accessed on March 24th 2017 at https://sites.google.com/site/admacsite/
  • Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
  • Wilson, E.O. 2003. Pheidole in the New World: A Dominant, Hyperdiverse Genus. Harvard University Press