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Types Mus. Comp. Zool. Harvard.
Etymology Named after the state of origin of the type colony.
diagnosis Similar in different traits to mixtecaHNS, scabriventrisHNS, and tragicaHNS, also from Mexico, differing as follows. Major: a broad rugoreticulum occurs between eye, antennal fossa, and frontal carina on each side of the head; midclypeus partially carinulate, and carinulae travel from the frontal lobes across the vertex but fall short of the occiput; all of head and mesosoma foveolate and opaque; anterior half of central strip of first gastral tergite shagreened; occipital cleft broad and deep; propodeal spines robust and backward-directed; postpetiole from above diamond-shaped.
Minor: eye set well forward on head; propodeal spines half as long as the propodeal basal face and backward-directed; pilosity sparse; occiput broad, its margin concave, and lacking nuchal collar. All of head and mesosoma foveolate and opaque. Measurements (mm) Holotype major: HW 0.92, HL 1.00, SL 0.50, EL 0.14, PW 0.46. Paratype minor: HW 0.50, HL 0.52, SL 0.42, EL 0.06, PW 0.32.
Color Major: body and mandibles medium reddish brown, other appendages dark yellow. Minor: concolorous light reddish yellow.
Range Known only from the type locality.
figure Upper: holotype, major. Lower: paratype, minor. MEXICO: 10 km south of Valle Nacional, Oaxaca, 610 m (Stewart B. Peck). Scale bars = 1 mm.
Found most commonly in these habitats: 11 times found in cloud forest, 6 times found in disturbed cloud forest, 2 times found in riparian forest, 3 times found in riparian forest in ravine, 2 times found in mixed liquidambar forest, 2 times found in Bosque Mixto, 1 times found in riparian mesophytic forest, 1 times found in oak forest, 1 times found in pine, cloud forest, 1 times found in wet oak pine forest, ...
Found most commonly in these microhabitats: 22 times at bait, 9 times forest litter, 4 times ex sifted leaf litter.
Collected most commonly using these methods: 20 times Baiting, 13 times Berlese, 2 times bait.
Elevations: collected from 650 - 1700 meters, 1497 meters average
Type specimens: holotype major Pheidole oaxacana: mczholotype34298