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Pheidole guilelmimuelleri subsp. bucculentaHNS Forel 1908h: 379. Not seen: types of Pheidole guilelmimuelleri subsp. bucculenta var. socrusHNS Forel 1914e: 12 (Colombia), an unavailable name (quadrinomial).
Types Mus. Hist. Nat. Geneve.
Diagnosis Similar to antillanaHNS of the Lesser Antilles and the South American aviaHNS, guilelmimuelleriHNS, hetschkoiHNS, heyeriHNS, hortonaeHNS, praesesHNS, and rhytiferaHNS, as well as to mamoreHNS in the scrobiferaHNS group, but differing in the following combination of traits. Major: very close to the lectotype major of guilelmimuelleriHNS (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.
Found most commonly in these habitats: 1 times found in cloud forest.
Found most commonly in these microhabitats: 1 times at bait.
Collected most commonly using these methods: 1 times baiting.
Elevations: collected from 850 - 2020 meters, 1435 meters average
Type specimens: Lectotype of Pheidole bucculenta: casent0908177; paralectotype of Pheidole bucculenta: casent0908176; Type of unavailable quadrinomial: Pheidole guilelmimuelleri bucculenta socrus: casent0908178