Checkered flower beetle (Coleoptera: Cleridae) attractant: development of an effective bait

Cyclohexyl phenylacetate, a lure for male and female checkered flower beetles, Trichodes ornatus Say, impregnated on rubber septa was effective for 6 weeks in the field. Beetle captures in traps baited with septa containing 200-400 mg of the lure were statistically equal. A septum containing 400 mg lure initially will lose ca. 200 mg through evaporation by the 43rd day; thus, two baits suffice for the beetle's principle flight period which lasts from early June to mid-August in Washington.