Pheidole infernalis, Wilson, E. O., 2003

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press : 439

Pheidole infernalis new species

Types Mus. Comp. Zool. Harvard.

Etymology L infernalis , from the lower regions.

diagnosis Similar to the species listed in the heading above, differing as follows.

Major: shallow antennal scrobe present; occipital lobes and a broad swath running down the sides of the head from occiput to near the anterior genal border rugoreticulate; most of the rest of the head carinulate; humeri angulate, their tips rugoreticulate, and the rest of the promesonotal dorsum smooth; propodeal spines half as long as the propodeal basal face; postpetiole from above conulate.

Minor: sides of head feebly foveolate; head and pronotum mostly smooth and shiny; occiput broad and feebly concave; humerus in dorsal-oblique view denticulate; propodeal spines reduced to denticles.

Measurements (mm) Holotype major: HW 0.72, HL 0.74, SL 0.36, EL 0.08, PW 0.38.

Paratype minor: HW 0.48, HL 0.52, SL 0.44, EL 0.06, PW 0.30.

Color Major: body brownish yellow except for dorsal surface of head, which is medium brown. Minor: body dark yellow, appendages medium yellow. range Known only from the type locality.

Biology The types were sifted from rotting wood and mold on the floor of rainforest (P. S. Ward).

Figure Upper: holotype, major. Lower: paratype, minor. BOLIVIA: Parque Nacional Noel Kempff Mercado, 14A°48'S 60A°23W, 700 m (Philip S. Ward). Scale bars = 1 mm.