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Pheidole chilensis MayrHNS
Pheidole chilensis MayrHNS 1862: 748.
Types Naturhist. Mus. Wien.
Etymology Named after the country of origin.
Major: lacking the 4-lobed profde and broad, convex metanotum of teneriffanaHNS; dorsal surface of the head covered by carinulae except for frontal triangle and midclypeus; carinulae originating on the frontal lobes spread outward as they approach the occiput and then travel back to return to the anterior part of the head in parallel; antennal scrobes present; anterior midclypeal margin excavated; postpetiole from above conulate; all of promesonotum transversely carinulate.
Minor: occiput narrowed and with nuchal collar; postpetiole from above diamond-shaped.
Both castes have abundant, erect hairs on the antennal scapes.
Measurements (mm) Lectotype major: HW 1.46, HL 1.48, SL 0.94, EL 0.22, PW 0.62 (may be distorted by pin through pronotum).
Paralectotype minor: HW 0.60, HL 0.76, SL 0.94, EL 0.14, PW 0.40. color Major: body light reddish yellow, gaster light yellowish brown. Minor: concolorous yellow.
Majors and minors collected in Lima in 1961 are medium reddish brown.
range Known from the type collection from Chile; I have further compared a 1961 series from Lima, Peru, with the Mayr types.
Figure Upper: lectotype, major. Lower: paralectotype, minor. CHILE: no further data. Scale bars = 1 mm.