Pheidole rosae ^HNS Forel

Pheidole rosae ^HNS Forel 1901m: 63, replacement name for gertrudae ^HNS Mayr 1887: 592, primary junior homonym ofgertrudae Forel 1886b: xlii. Syn.: Pheidole silvestrii Emery ^HNS 1906c: 146, n. syn. Raised to species level inthis monograph: pullula ^HNS.

Types Naturhist. Mus. Wien. Etymology Eponymous.

Diagnosis Similar in various characters to species listed above, distinguished as follows.

Major: reddish yellow; frontal lobes extended forward as conspicuous lobes, as seen in side view; wide, shallow antennal scrobe present; promesonotum descends abruptly and obliquely to metanotum; postpetiolar node spinose; portions of anterior pronotal dorsum and propodeal dorsum carinulate, and rest of mesosoma smooth and shiny.

Minor: several carinulae extend from frontal lobes to occiput, center of occiput carinulate, and rest of posterior dorsal head surface smooth; propodeal spines reduced to denticles.

Measurements (mm) Syntype major of synonymous silvestrii ^HNS: HW 1.40, HL 1.52, SL 0.60, EL 0.16, PW 0.72. Syntype minor of synonymous silvestrii ^HNS: HW 0.62, HL 0.64, SL 0.58, EL 0.12, PW 0.42. Color Major: concolorous reddish yellow. Minor: concolorous plain medium yellow.

Range Recorded from Santa Catarina (type locality) and, as the synonymous " silvestrii ^HNS, " from Tucuman (type locality), Buenos Aires, and Cordoba, Argentina (Kempf 1972b; W. L. Brown).

Biology An inhabitant of subtropical forests. Winged queens and males were present in a nest near Tapia, Tucuman, on 25 January (W. L. Brown).

Figure Upper: syntype, major of synonymous P. silvestrii Emery ^HNS (Santa Catarina, Brazil). Lower: syntype, minor of synonymous P. silvestrii Emery ^HNS (Quebrada Cainzo, Tucuman, Argentina). Scale bars = 1 mm.