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Pheidole rosaeHNS Forel 1901m: 63, replacement name for gertrudaeHNS Mayr 1887: 592, primary junior homonym ofgertrudae Forel 1886b: xlii. Syn.: Pheidole silvestrii EmeryHNS 1906c: 146, n. syn. Raised to species level inthis monograph: pullulaHNS.
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 silvestriiHNS: HW 1.40, HL 1.52, SL 0.60, EL 0.16, PW 0.72. Syntype minor of synonymous silvestriiHNS: 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.
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 EmeryHNS (Santa Catarina, Brazil). Lower: syntype, minor of synonymous P. silvestrii EmeryHNS (Quebrada Cainzo, Tucuman, Argentina). Scale bars = 1 mm.