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Pheidole grex
| Pheidole grex | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Attini |
| Genus: | Pheidole |
| Species: | P. grex |
| Binomial name | |
| Pheidole grex Wilson, 2003 | |
This species is only known from a few collections. Nothing is known about its biology.
Identification
See the description in the nomenclature section.
Keys including this Species
Distribution
Known from Cundinamarca and Meta provinces in Colombia. (Wilson 2003)
Latitudinal Distribution Pattern
Latitudinal Range: 1.422962° to -4.1°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Neotropical Region: Colombia (type locality).
Distribution based on AntMaps
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.
- grex. Pheidole grex Wilson, 2003: 430, figs. (s.w.) COLOMBIA.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
A medium-sized, slender, yellow species placed in the flavens group (but with habitus intermediate to the punctithorax group), whose major has completely foveolate dorsum of the head (exclusive of central clypeus and frontal triangle) and mesosoma; carinulae limited to the anterior two-thirds of the head capsule; profile of the posterior half of the head flat in side view; relatively long, slender, nearly erect propodeal spines; low but distinct mesonotal convexity; and low postpetiolar node in side view.
Minor: foveolation as in major; sparse, paired hairs on mesonotal dorsum; and short, erect propodeal spines that curve forward. Somewhat similar to humida, but different in many details, as figured.
MEASUREMENTS (mm) Holotype major: HW 0.94, HL 1.08, SL 0.60, EL 0.16, PW 0.52. Paratype minor: HW 0.54, HL 0.58, SL 0.52, EL 0.10, PW 0.16.
COLOR Major: concolorous dark yellow.
Minor: concolorous medium yellow.
Figure. Upper: holotype, major. Lower: paratype, minor. Scale bars = 1 mm.
Type Material
COLOMBIA: Susumuco, Bogotá-Villavicencio, Cundinamarca, Km 88, 1100 m, col. William L. and Doris E. Brown. Museum of Comparative Zoology
Etymology
Gr grex, herd or flock.
References
- Wilson, E. O. 2003. Pheidole in the New World: A dominant, hyperdiverse ant genus. Harvard University Press, Cambridge, MA. (page 430, fig. major, minor described)