More than 50% of crucifer-feeding flea beetle (Coleoptera: Chrysomelidae) adults trapped on 1-m column traps in a rutabaga field were taken at less than 20 cm from ground level. The mean length of jump ofPhyllotreta cruciferae(Goeze) is 25 cm. Cylindrical traps painted red and coated with Tangletrap were used with statistics of directional data to measure immigration and emigration of adults. There were four immigration episodes and seven emigration episodes during the season.