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Extracted from: Baker J.R., (1975). Taxonomy of Five Nearctic Subgenera of Coelioxys (Hymenoptera; Megachilidae). The University of Kansas Science Bulletin Vol. 50, No. 12, pp.649-730.
FEMALE. Agrees with description and figures of Coelioxys banksi except as follows: (5) clypeal margin almost straight to slightly undulating or slightly outcurved; clypeal profile straight.
MALE. Agrees with description and figures of Coelioxys banksi.
HABITAT. The distribution of Coeli-oxys insita extends westward to an area classified as pine-Douglas fir forest (Pinus, Pseudotsuga) in Colorado and eastward to an area classified as oak-hickory forest (Quercus, Carya) in Texas. This bee has also been taken from areas classified as eastern ponderosa pine forest, oak-juniper woodland (Juniperus), mesquite-oak sa-vana (Prosopis, Quercus, Andropogon), mesquite-buffalo grass (Buchloe), creosote bush-tarbush (Larrea, Flourensia), and grama-tobosa-shrubsteppe (Bouteloua, Hi-laria) vegetation types. The remaining areas are classified as western grassland and central and eastern grassland contain-ing such dominant grasses as grama, to-bosa, buffalo grass (Buchloe), bluestem (Andropogon), switchgrass (Panicum), and Indian grass (Sorghastrum).
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