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Costa Rica: mid-elevation Atlantic slope.
This species occurs in mature wet forest, nests in the soil or under stones, and forages in or on forest floor leaf litter.
Diagnosis a relatively large species for the flavensHNS group, with yellow to brown major and minor. Similar to amabilisHNS of Costa Rica but differing in the major in the reduced propodeal spines, which point posteriorly (versus vertically in amabilisHNS); in the well-developed mesonotal convexity, in the longer cephalic carinulae; in the more extensive carinulae of the pronotal dorsum; and in much longer antennal scapes of the minor (SL/HW 1.14, versus 1.0 in amabilisHNS). P. cerinaHNS, in the major mesonotal convexity and longer minor scapes, appears intermediate between the flavensHNS and punctatissimaHNS groups.
Measurements (mm) Holotype major: HW 1.14, HL 1.74, SL 0.64, EL 0.16, PW 0.56. Paratype minor: HW 0.44, HL 0.50, SL 0.50, EL 0.06, PW 0.30.
Color Major: body, mandibles, and antennae concolorous reddish yellow, legs medium yellow.
Minor: concolorous light-medium yellow. I have also seen two dark series from the type locality, with medium brown bodies and yellow appendages.
Range Known only from the type locality.
Biology Three series for which data are available come from litter samples taken in wet forest.
figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: Rio Penas Blancas, Alajuela, lO0!0^ 84AÃ‚Â°43 W, 800 m (J. T. Longino). Scale bars = 1 mm.
Found most commonly in these habitats: 23 times found in mature wet forest, 22 times found in montane wet forest, 10 times found in wet forest, 2 times found in mature cloud forest, 6 times found in cloud forest, primary, near ridgetop, 4 times found in cloud forest, primary, along steep ridge near peak, 1 times found in cloud forest.
Found most commonly in these microhabitats: 32 times ex sifted leaf litter, 19 times Hojarasca, 3 times nest in soil, 2 times nest in clay bank, 1 times under stone, 5 times at bait, 2 times nest under stone, 1 times wet forest at night; under stone, 1 times sifted litter, 1 times at cookie bait.
Collected most commonly using these methods: 26 times miniWinkler, 8 times search, 19 times Mini Winkler, 6 times Winkler, 6 times baiting, 2 times Malaise, 1 times maxiWinkler.
Elevations: collected from 500 - 1230 meters, 733 meters average