An unusually large aggregation of the western conifer seed bug, Leptoglossus occidentalis (Hemiptera: Coreidae), in a man-made structure


  • S. E. Blatt Department of Biological Sciences, Centre for Pest Management Simon Fraser University Burnaby, B.C. V5A 1S6


An overwintering aggregation of more than 2000 Leptoglossus occidentalis is reported in a manufacturing plant in the southem interior of British Columbia. Such aggregations may be mediated by pheromones. Range extension may have occurred through inadvertent transport of aggregations of overwintering adults.