X. frontalis is part of a group of solitary bees called carpenter bees.
X. frontalis is vital in the
pollination of wild and cultivated large flowering plants.
X. frontalis choose their nesting places very carefully. A study was done to see how
X. frontalis chose their nesting sites. They found that the nesting substrates and nesting sites exhibited a clumped spatial distribution.
X. frontalis had a preferred substrate and built their nests primarily on those substrates. This shows that they carefully pick out their nesting sites rather than nesting where available. ==Ecology==