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|Synonym of Formica subnuda: Creighton, 1950a PDF: 469; Wilson & Brown, 1955 PDF: 118; Buren, 1968a PDF: 33.|
Found most commonly in these habitats: 25 times found in very active, aggressive, aspen forest, grassy meadow, sandy soil, nest in/under log, 9 times found in conifer forest, 14 times found in spruce/aspen forest, rocky loam, brood, nest in/under log, thatching, 11 times found in sparse pine forest, light brown sandy loam, moist, level area, very active, nest in small thatched mound, 11 times found in pine/aspen forest, clay loam soil, active, aggressive, escape, nest in/under 50 cm diameter log, 8 times found in very active, aggressive, spruce/aspen forest, rocky sand, brood, nest in/under log, 5 times found in aspen grove, 7 times found in deciduous forest, light brown rocky clay, nest in/under bark of log, juniper, 7 times found in moderate pine/fir forest, clay loam, nest in log 40cm diameter, wet, loose bark with thatch, 2 times found in sparse conifer woods, ...
Found most commonly in these microhabitats: 7 times in dead wood, 6 times under stone, 5 times foragers, 7 times log stage 4, 2 times nest in dead wood, 2 times in rotten stump, 3 times under dead wood, 2 times stray foragers, 5 times log stage 3, 1 times small rotten log, 4 times under wood, ...
Collected most commonly using these methods: 63 times search, 8 times hand collecting, 5 times direct collection, 1 times pitfall trap, 1 times 15 pitfall traps installed in a 5 by 3 grid, 5 m between each trap, 1 times Davis sifter, 1 times ground foragers.
Elevations: collected from 5 - 3202 meters, 1800 meters average