Pheidole bucculenta ^HNS Forel, new status

Pheidole guilelmimuelleri subsp. bucculenta ^HNS Forel 1908h: 379. Not seen: types of Pheidole guilelmimuelleri subsp. bucculenta var. socrus ^HNS Forel 1914e: 12 (Colombia), an unavailable name (quadrinomial).

Types Mus. Hist. Nat. Geneve.

Etymology L bucculenta ^HNS, with full cheeks, allusion unknown.

Diagnosis Similar to antillana ^HNS of the Lesser Antilles and the South American avia ^HNS, guilelmimuelleri ^HNS, hetschkoi ^HNS, heyeri ^HNS, hortonae ^HNS, praeses ^HNS, and rhytifera ^HNS, as well as to mamore ^HNS in the scrobifera ^HNS group, but differing in the following combination of traits. Major: very close to the lectotype major of guilelmimuelleri ^HNS (q.v.), but the minor is very distinct, as follows: propodeal spines absent, replaced by right-angular junctions between the basal and posterior propodeal faces; humerus smoothly rounded in dorsal-oblique view; head and body almost completely smooth and shiny, with sculpturing on head comprising only short carinulae anterior to the level of the eyes.

Measurements (mm) Paralectotype major: HW 1.76, HL 1.76, SL 0.84, EL 0.10, PW 0.84. Lectotype minor: HW 0.64, HL 0.76, SL 0.96, EL 0.12, PW 0.46. color Major: not recorded. Minor: concolorous clear yellow.

Range Known only from the state of Sao Paulo, Brazil.

Biology A nest was found in wet mountain forest near Salesopolis, Sao Paulo, 850 m, by William L. and Doris E. Brown.

Figure Lectotype, minor. BRAZIL: Alto da Serra, Sao Paulo. Paralectotype major not shown; very similar to guilelmimuelleri ^HNS lectotype major (q.v.). Scale bar = 1 mm.