Pheidole fissiceps, Wilson, E. O., 2003

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press : 145

Pheidole fissiceps new species

Types Mus. Comp. Zool. Harvard.

Etymology L fissiceps , cleft head, referring to the deep median occipital cleft.

Diagnosis A member of the biconstricta group, similar to biconstricta , plato , simplex , and socrates , easily distinguished as follows. Major: deep midoccipital cleft; large propodeal spines; flat profile posterior dorsal surface of the head; aligned appressed pilosity of the dorsal head surface; transversely carinulate pronotal dorsum. Minor: tapered occiput with well-developed occipital collar.

Measurements (mm) Holotype major: HW 1.56, HL 1.70, SL 1.18, EL 0.22, PW 0.74. Paratype minor: HW 0.58, HL 0.78, SL 1.06, EL 0.16, PW 0.40. Color Major and minor: concolorous yellow. range Known only from the type locality.

biology Unknown.

Figure Upper: holotype, major. Lower: paratype, minor. PERU: Estacion Biologia de Cocha Cashu, Madre de Dios Prov., 400 m (Diane W. Davidson). Scale bars = 1 mm.