Catches multiple species. Attractant lasts for weeks without daily maintenance Won't trap beneficial honeybees; Double-chambered design prevents yellowjackets from escaping Durable plastic holds up in sunlight for seasons of use; Used and recommended by the United States Department of Agriculture as well as major U.S. zoos, parks, campgrounds, resorts and school districts; Clear plastic tube allows the user to see the yellowjacket "body count"; Once inside the trap, the yellowjackets cannot fly out and die of dehydration.;