Pheidole nana Emery

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press : 467

Pheidole nana Emery

Pheidole nana Emery 1894d: 158. Raised to species level in this monograph: subreticulata .

Types Mus. Civ. Stor. Nat. Genova.

Etymology L nana , dwarf, alluding to small size.

Diagnosis A medium-sized member of the flavens group, most similar to borgmeieri , differing from it and other species of the group as follows.

Major: profile of promesonotum in side view forming a single, smooth, near perfect semicircle; in dorsal-oblique view, humerus rises well above the remainder of the pronotum and the mesonotum; propodeal spine long and thin; postpetiolar node from above bellshaped; carinulae cover dorsal surface of head except for occiput as spaces next to the posterior reaches of the frontal carinae, as well as the frontal triangle and mid-clypeus; anterior margin of pronotum carinulate.

Minor: profile of promesonotum forms a smooth, nearly perfect semicircle; propodeal spines relatively long and thin; frontal carinae and carinulae mesad to it reach almost to occiput.

Measurements (mm) Lectotype major: HW 0.90, HL 0.86, SL 0.54, EL 0.08, PW 0.44.

Paralectotype minor: HW 0.46, HL 0.54, SL 0.46, EL 0.04, PW 0.32.

Color Major: concolorous brownish yellow.

Minor: concolorous yellowish brown.

Range Mato Grosso, Brazil.

Biology Unknown.

figure Upper: lectotype, major. Lower: paralectotype, minor. BRAZIL: Mato Grosso. Scale bars = 1 mm.