Where Found
for Boxelder Bug
In summer the bugs live on their host trees, strongly favoring the female, seed-bearing boxelder but also feeding on maple and ash. Source: https://extension.umn.edu/nuisance-insects/boxelder-bugs In fall they crowd onto building exteriors, favoring walls with strong southern or western sun. Source: https://extension.umn.edu/nuisance-insects/boxelder-bugs To get inside they slip through the gaps that ring window and door frames, slide behind siding that no longer sits tight, and squeeze through the vents under the eaves. Source: https://www.canr.msu.edu/news/boxelder_bugs_asian_lady_beetles_and_cluster_flies_oh_boy