Pheidole dwyeri

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Pheidole dwyeri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. dwyeri
Binomial name
Pheidole dwyeri
Gregg, 1969

Pheidole dwyeri casent0901588 p 1 high.jpg

Pheidole dwyeri casent0901588 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of dwyeri.

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

Only known from the type locality.

Latitudinal Distribution Pattern

Latitudinal Range: 21.619172° to 19.5°.

 
North
Temperate
North
Subtropical
Tropical South
Subtropical
South
Temperate

Distribution based on Regional Taxon Lists

Neotropical Region: 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

Worker

Minor

Images from AntWeb

Pheidole dwyeri casent0901587 h 1 high.jpgPheidole dwyeri casent0901587 p 1 high.jpgPheidole dwyeri casent0901587 d 1 high.jpgPheidole dwyeri casent0901587 l 1 high.jpg
Paratype of Pheidole dwyeriWorker. Specimen code casent0901587. Photographer Will Ericson, uploaded by California Academy of Sciences. Owned by NHMUK, London, UK.
Pheidole dwyeri fmnhins0000083048 h 1 high.jpgPheidole dwyeri fmnhins0000083048 p 1 high.jpgPheidole dwyeri fmnhins0000083048 d 1 high.jpgPheidole dwyeri fmnhins0000083048 l 1 high.jpg
ParatypeWorker. Specimen code fmnhins0000083048. Photographer Gracen Brilmyer, uploaded by Field Museum. Owned by FMNH.

Major

Pheidole dwyeri fmnhins0000083050 h 1 high.jpgPheidole dwyeri fmnhins0000083050 p 1 high.jpgPheidole dwyeri fmnhins0000083050 d 1 high.jpgPheidole dwyeri fmnhins0000083050 l 1 high.jpg
.

Nomenclature

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

  • dwyeri. Pheidole dwyeri Gregg, 1969: 97, fig. 2 (s.w.) MEXICO. See also: Wilson, 2003: 541.

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): DIAGNOSIS A very distinctive species in the small group of Pheidole that possess 4-segmented antennal clubs.

Major: very large; head disproportionately large, with Head Width more than 2.5X Pronotal Width; head tapered strongly toward occiput in side view; in full-face view, occiput deeply and subangularly concave; median ocellus present; small patch of rugoreticulum present laterad to each antennal fossa.

Minor: propodeal spine of medium length; occiput in full-face view broad and weakly concave.

MEASUREMENTS (mm) Paratype major: HW 2.56, HL 2.58, SL 1.24, EL 0.24, PW 1.00. Paratype minor: HW 0.66, HL 0.74, SL 0.76, EL 0.12, PW 0.42.


Pheidole dwyeri Wilson 2003.jpg

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

Type Material

MEXICO: Isla Maria Cleofas, Las Tres Marias, Nayarit, col. Roy R. Snelling. Los Angeles County Museum of Natural History, Museum of Comparative Zoology and American Museum of Natural History - as reported in Wilson (2003)

Etymology

Named after Richard F. Dwyer, who sponsored the Snelling collecting tour of Las Tres Marias. (Wilson 2003)

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
  • Fernandes, P.R. XXXX. Los hormigas del suelo en Mexico: Diversidad, distribucion e importancia (Hymenoptera: Formicidae).
  • Field Museum Collection, Chicago, Illinois (C. Moreau)
  • Kempf, W.W. 1972. Catalago abreviado das formigas da regiao Neotropical (Hym. Formicidae) Studia Entomologica 15(1-4).
  • 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