Pheidole tetrica

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Pheidole tetrica
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Attini
Genus: Pheidole
Species: P. tetrica
Binomial name
Pheidole tetrica
Forel, 1913

MCZ-ENT00032035 Pheidole tetrica hal.jpg

MCZ-ENT00032035 Pheidole tetrica had.jpg

Type Specimen Label

Nothing is known about the biology of tetrica.

Identification

See the description in the nomenclature section.

Keys including this Species

Distribution

From Wilson (2003): Recorded from Santa Catarina and São Paulo, Brazil (Kempf 1972b).

Distribution based on Regional Taxon Lists

Neotropical Region: Brazil (type locality).

Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

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

  • tetrica. Pheidole tetrica Forel, 1913l: 226 (s.w.q.) BRAZIL. See also: Wilson, 2003: 524.

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 Similar in various traits to Pheidole tarchon and Pheidole victima, differing as follows.

Major: dorsal surface of head, except for frontal triangle and midclypeus, completely covered with carinulae; pronotum covered by “wraparound” carinulae that circle the dorsum to travel along the lower lateral margin; in dorsal-oblique view propodeum descends anteriorly to metanotal groove through a steep face; propodeal spine almost half as long as propodeal basal face and almost vertical to it; postpetiole from above bluntly spinose.

Minor: widely spaced carinulae cover almost all the dorsal surface of the head, including occiput; center of mesopleuron and center of side of propodeum with longitudinal carinulae; occiput broad, lacking nuchal collar.

MEASUREMENTS (mm) Holotype major: HW 1.08, HL 1.10, SL 0.62, EL 0.16, PW 0.52. Paratype minor: HW 0.52, HL 0.62, SL 0.64, EL 0.12, PW 0.40.

COLOR Major: concolorous yellow with faint reddish tinge.

Minor: concolorous yellow.


Pheidole tetrica Wilson 2003.jpg

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

Syntype Specimen Labels

Type Material

BRAZIL: Ibirama, Santa Catarina. Musee d'Histoire Naturelle Genève, Museum of Comparative Zoology - as reported in Wilson (2003)

Etymology

L tetrica, harsh, forbidding, allusion unknown. (Wilson 2003)

References

  • Forel, A. 1913m. Fourmis d'Argentine, du Brésil, du Guatémala & de Cuba reçues de M. M. Bruch, Prof. v. Ihering, Mlle Baez, M. Peper et M. Rovereto. Bull. Soc. Vaudoise Sci. Nat. 49: 203-250 (page 226, soldier, worker, queen described)
  • Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Stud. Entomol. 15: 3–344.
  • Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 524, fig. major, minor described)