Pheidole impressa Mayr

Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA: Harvard University Press : 303

Pheidole impressa Mayr

Pheidole impressa Mayr 1870b: 985. Not seen, and status unknown: Pheidole impressa var. detrita Emery 1890b: 66 (type locality: San Esteban, Venezuela).

Types Naturhist. Mus. Wien.

Etymology L impressa , marked by impression, possibly referring to the gastral striae.

diagnosis A very distinct member of the fallax group, easily distinguished as follows.

Major: anterior third of central strip of first gastral tergite longitudinally striate; the whole gastral tergite shagreened; rugoreticulum on each side of head stretches from eye medially to antennal fossa and anteriorly to near the anterior border of head; propodeal spines moderately long and nearly vertical to basal propodeal face; promesonotal dorsum transversely carinulate; all of cephalic dorsum, mesosoma, and waist foveolate and feebly shiny to opaque; postpetiolar node from above trapezoidal. Minor not seen.

Measurements (mm) Holotype major: HW 1.36, HL 1.68, SL 0.92, EL 0.22, PW 0.70.

Color Major: body and mandibles medium reddish brown, other appendages light reddish brown.

Range Known from Ceara and the neighboring state of Rio Grande do Norte, in northeastern Brazil (Kempf 1972b).

Biology Unknown.

Figure Unique holotype, major. BRAZIL: Ceara (M. E. Simon). Minor not seen. Scale bar = 1 mm.