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Natural History: C. laeviuscula nests near the ground, most often in a moist, decomposing stump or log, but forages mostly above ground on plants and in tree canopies, traveling in columns up and down tree trunks for access. Sexuals are reared in early summer.
Found most commonly in these habitats: 12 times found in Riparian woodland, 11 times found in Mixed hardwood forest, 5 times found in live oak woodland, 1 times found in open grassland, 3 times found in grassland, 2 times found in desert gallery forest, 2 times found in desert wash, 4 times found in sand dunes, 2 times found in postoak/grass parkland, 1 times found in oak scrub, ...
Found most commonly in these microhabitats: 5 times under stone, 3 times on low vegetation, 2 times nest in dead stick, 7 times under rock, 6 times in Quercus virginiana, 2 times nest under rock, 4 times on tree trunk, 5 times in cottonwood, 1 times nest under rock at base of Populus and under bark, 3 times dead branch, 1 times nest in dry wood, ...
Collected most commonly using these methods: 25 times direct collection, 13 times hand collecting, 14 times search, 1 times hand coll., 2 times hand collected, 2 times Winkler, 3 times pitfall, 2 times Winkler funnel, 2 times ex trap nest, 2 times Malaise trap, 2 times pitfall trap, ...
Elevations: collected from 2 - 3000 meters, 381 meters average
Collect Date Range: collected between 1870-12-31 and 2021-03-11
Type specimens: Holotype of Crematogaster hespera: usnment00529501; Paratype Crematogaster hespera: casent0616083, casent0616084, casent0616115, casent0616116; syntype clara: jtl055884; syntype laeviuscula: jtl055973; syntype of Crematogaster bicolor: casent0901443; syntype of Crematogaster lineolata cedrosensis: casent0863152, casent0863153; syntype of Crematogaster lineolata laeviuscula clara: casent0902142; Syntype workers of Crematogaster atkinsoni: lacment182007