Pheidole in the New World. A dominant, hyperdiverse ant genus. Wilson, E. O. urn:lsid:biosci.ohio-state.edu:osuc_concepts:181672 Insecta Formicidae Pheidole Animalia Pheidole hierax Wilson Hymenoptera 194 Arthropoda species hierax new species  etymology Gr hierax, hawk.  Diagnosis Close to pugnax, and also somewhat less similar to the species listed in the heading, distinguished as follows. Major: dark yellow; rugoreticulum absent on head; all of posterior dorsal surface of head foveolate and opaque, but posterior lateral surface smooth and shiny; carinulae along midline of head extends halfway between eye level and occiput; transverse carinulae present on anterior edge bf pronotal dorsum; all of mesosoma and waist foveolate; all of central strip of first gastral tergite shagreened; pronotal dorsum in dorsal-oblique view subangulate, not bilobous; a few long, sparse hairs present on dorsal surface of head, but mesosoma almost completely bare; propodeal spiracle elliptical.  Minor: head, mesosoma, and waist completely foveolate and almost bare of pilosity; anterior half of first gastral tergite shagreened; anterior propodeal face drops precipitously to metanotum in dorsal-oblique view. Measurements (mm) Holotype major: HW 1.04, HL 1.04, SL 0.68, EL 0.18, PW 0.58. Paratype minor: HW 0.54, HL 0.60, SL 0.68, EL 0.12, PW 0.38. color Major and minor: dark yellow.  Range Known only from the type locality.  Biology Unknown.  Figure Upper: holotype, major. Lower: paratype, minor. PANAMA: Barro Colorado Island (Diana E. Wheeler). Scale bars = 1 mm.