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Costa Rica: Monteverde, Pe–as Blancas, Maritza, Heredia coffee farms, La Selva Biological Station, Hitoy Cerere, Corcovado, Wilson Botanical Garden, San JosŽ, Carrillo in Braulio Carrillo National Park.
This species occurs in wet and moist forest habitats on both slopes. On the Atlantic slope it occurs in the lowlands and as high as 800m in the Pe–as Blancas Valley. It does not occur in the Monteverde cloud forest but appears again in the moist forest habitats on the Pacific slope just below Monteverde. It occurs in lowland and montane rainforest, and also in urban and agricultural areas in the Central Valley. For example, I have collected workers in a small patio area of a San JosŽ hotel.
The species appears to nest and forage near ground level. The nests I have observed have been under stones, and one was in the base of a live fern. At La Selva Biological Station, workers have been collected in Winkler samples of sifted leaf litter and in Malaise traps, but in only one of 51 Project ALAS fogging samples. Workers may be collected at baits on the ground or as foragers on low vegetation.
Found most commonly in these habitats: 93 times found in mature wet forest, 74 times found in montane wet forest, 12 times found in wet cloud forest, 10 times found in wet forest, 12 times found in tropical rainforest, some big trees, 4 times found in wet trop. forest, 6 times found in tropical rainforest, with big trees, probably primary, 5 times found in montane forest, 6 times found in lowland rainforest, 2 times found in wet mixed, ...
Found most commonly in these microhabitats: 163 times ex sifted leaf litter, 30 times Hojarasca, 19 times Sobre Vegetacion, 15 times at bait, 4 times beating veg., 1 times La Selva, 1 times Cerca de; Cañon del rio Peje hacia Cascante, brachymyrmex nest in base of live fern. times wet forest, #2012, 1 times wet forest, 1 times Primary forest, 1 times nest under stone, ...
Collected most commonly using these methods: 103 times miniWinkler, 57 times Winkler, 36 times Mini Winkler, 21 times Malaise, 19 times Sweeping, 14 times baiting, 8 times Berlese, 5 times search, 5 times beating, 4 times maxiWinkler, 3 times flight intercept trap, ...
Elevations: collected from 10 - 1500 meters, 429 meters average