A “must have” product for the backyard bbq set:

The Mosquito Magnet? mimics a human by emitting a plume of carbon dioxide (CO2), heat and moisture, and a short-range attractant, octenol. This precise combination is irresistible to female mosquitoes (the ones that bite), no-see-ums, biting midges, black flies, and sandflies. As the mosquito approaches the trap hoping for a human, it is quietly vacuumed into a net where it dehydrates and dies.
Silent, odorless, no mess.