Pheidole grex

This species is only known from a few collections. Nothing is known about its biology.

Identification
See the description in the nomenclature section.

Distribution
Known from Cundinamarca and Meta provinces in Colombia. (Wilson 2003)

Distribution based on Regional Taxon Lists
Neotropical Region: Colombia.

Nomenclature

 *  grex. Pheidole grex Wilson, 2003: 430, figs. (s.w.) COLOMBIA.

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.

Etymology
Gr grex, herd or flock.