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Pheidole obrimaHNS new species

Types Mus. Comp. Zool. Harvard.

Etymology Gr obrimaHNS, strong, mighty, alluding to large, robust bodies of both castes.

Diagnosis A large, brown member of the tristisHNS group with yellow appendages, relatively short propodeal spines, bell-shaped postpetiolar node, prominent convex subpostpetiolar process, and overall weak sculpturing comprising scattered patches of carinulae and foveolae. Similar to alpinensisHNS, excubitorHNS, exarataHNS, gaigeiHNS, germainiHNS, godmaniHNS, grandinodusHNS, grantaeHNS, rogeriHNS, severiniHNS, stultaHNS, tristisHNS, and zosterHNS, differing in many details of body form, sculpturing, and pilosity, as illustrated, and in color.

Measurements (mm) Holotype major: HW 1.68, HL 1.86, SL 0.84, EL 0.20, PW 0.82.

Paratype minor: HW 0.70, HL 0.74, SL 0.74, EL 0.12, PW 0.46.

Color Major: body medium reddish yellow, appendages reddish yellow.

Minor: head medium brown, rest of body yellowish brown, appendages light yellowish brown to dark yellow.

Range Known only from the type locality.

Biology Unknown.

Figure Upper: holotype, major. Lower: paratype, minor. VENEZUELA: Rancho Grande, 1100 m (R. W. Poole). Scale bars = 1 mm.