Pheidole davisi

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Pheidole davisi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. davisi
Binomial name
Pheidole davisi
Wheeler, W.M., 1905

Pheidole davisi casent0104757 profile 1.jpg

Pheidole davisi casent0104757 dorsal 1.jpg

Specimen Label

From Wilson (2003): In the eastern United States, davisi is typically an inhabitant of pine barrens, where it has been found in crater nests constructed in open sandy areas exposed to the sun. Its habitat in Mexico is unknown. Colonies have been observed to harvest seeds (Stefan Cover).

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

In the United States, davisi has been recorded from New York to North Carolina and northern Alabama. I have also identified a series collected by Stuart and Jarmila Kukalová-Peck from the Mesa de Chipinque Monterrey, Nuevo Leon, in northeastern Mexico. The species thus appears to have a disjunct distribution between the southeastern U.S. and northeastern Mexico, of the kind known in many other animal and plant species. (Wilson 2003)

Distribution based on Regional Taxon Lists

Nearctic Region: United States (type locality).
Neotropical Region: Mexico.

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Worker

Minor

Major

Queen

Nomenclature

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

  • davisi. Pheidole davisi Wheeler, W.M. 1905f: 380 (s.w.) U.S.A. See also: Wilson, 2003: 574.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description. 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 small brown member of the pilifera group distinguished by the following traits.

Major: mesonotal convexity small, obtuse-subangular; metanotal groove absent, with metanotal profile forming a continuous line with that of the basal propodeal face; mesonotal dorsum, mesopleuron, and side of propodeum covered with longitudinal carinulae, foveolate, and opaque; pronotal dorsum transversely and pronotal sides longitudinally carinulate, foveolate, and opaque.

Minor: mesopleuron and side of propodeum longitudinally carinulate; all of mesosoma foveolate and opaque.

Close to Pheidole adrianoi of Florida but differing in the above and other characters.

MEASUREMENTS (mm) Paratype major: HW 0.98, HL 0.96, SL 0.44, EL 0.12, PW 0.46. Paratype minor: HW 0.44, HL 0.46, SL 0.42, EL 0.08, PW 0.30.

COLOR Major: body light reddish to yellowish brown.

Minor: body concolorous dark reddish brown; antennae yellowish brown.


Pheidole davisi Wilson 2003.jpg

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

Type Material

NEW JERSEY: Lakehurst. Museum of Comparative Zoology - as reported in Wilson (2003)

Etymology

Eponymous. (Wilson 2003)

References

  • Wheeler, W. M. 1905j. An annotated list of the ants of New Jersey. Bull. Am. Mus. Nat. Hist. 21: 371-403 (page 380, soldier, worker described)
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 574, fig. major, minor described)