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|[First available use of Formica rufa obscuriventris integroides Emery, 1893k PDF: 649; unavailable name.].|
Found most commonly in these habitats: 4 times found in oak woodland, 3 times found in pine woodland, 2 times found in Cercocarpus scrub, 1 times found in conifer forest, 2 times found in coastal scrub, 1 times found in pine/oak/douglas fir forest, 3 times found in chaparral, 2 times found in greasewood-saltbush desert, 2 times found in mixed conifer/broadleaf riparian zone, 1 times found in montane chaparral, ...
Found most commonly in these microhabitats: 9 times mound nest, 3 times thatch mound, 2 times ground forager(s), 1 times nest at base of Pseudotsuga menziesii, 1 times nest in soil under rock, 1 times strays on ground, 2 times strays, 1 times sagebrush canyon and stream, 1 times ground nest, 1 times ground foragers, 1 times ex rotten log, ...
Collected most commonly using these methods: 6 times hand collecting, 8 times search, 2 times direct collection, 1 times Bay Area Ant Survey (BAAS).
Elevations: collected from 46 - 2660 meters, 1107 meters average
Type specimens: paratype of Formica rufa obscuriventris integroides: casent0905699