Pest Organisms / Smokybrown Cockroach
Where Found
Smokybrowns are chiefly an outdoor, peridomestic insect. They thrive in mulch beds, firewood piles, plantings, tree holes, gutters, and coastal palms, and favor the upper parts of structures: attics, soffits, and crawlspaces. Source: https://hgic.clemson.edu/factsheet/cockroach-control/ Source: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7467.html
According to UGA, they turn up most often in older southern subdivisions shaded by big hardwood trees. They lean heavily on damp conditions, tucking into humid pockets where moving air cannot dry them out. Source: https://fieldreport.caes.uga.edu/publications/B1412/ Source: https://hgic.clemson.edu/factsheet/cockroach-control/
Their U.S. range centers on the South and Gulf Coast, reaching toward the Midwest and into southern California, where they are now rarely encountered. Source: https://entnemdept.ufl.edu/projex/gallery/dl/cockroaches/text/smokybrown_cockroach.htm Source: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7467.html