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Types Mus. Comp. Zool. Harvard.
Etymology Named based on the Ecuadoran province of the type locality.
Major: brown; frontal lobes extended forward as conspicuous right-angular processes, seen from the side; antennal scrobes present, each followed posteriorly by a patch of rugoreticulum; a very small patch of rugoreticulum present on edge of antennal fossa; occipital lobes in full-face view smoothly rounded; posterior half of pronotal profile flat in dorsal-oblique view; mesonotum and dorsal propodeal face almost entirely free of carinulae; postpetiole spinose.
Minor: propodeal spines reduced to denticles; occiput narrow, with very thin nuchal collar; carinulae on promesonotum mostly limited to anterior and posterior margins; carinulae on head mostly limited to posterior fourth of dorsal head surface. Measurements (mm) Holotype major: HW 1.52, HL 1.64, SL 0.68, EL 0.14, PW 0.74. Paratype minor: HW 0.56, HL 0.60, SL 0.70, EL 0.08, PW 0.38.
color Major: gaster plain dark brown; rest of body, and mandibles, medium reddish brown; other appendages plain dark yellow. Minor: body plain light brown, appendages dark yellow.
Range Known only from Bucay and Rio Palenque, Ecuador.
Biology The type series was collected from a forest at the base of a mountain, and the nest contained seeds. Winged queens were present in the Rio Palenque nest when found by G. J. Umphrey on 28 July.
figure Upper: holotype, major. Lower: paratype, minor. ECUADOR: 3 km southwest of Bucay, Guayas (William L. Brown). Scale bars = 1 mm.