Raid Flying Insect Killer insecticide is specially formulated to kill a number of flying insects including Asian lady beetles, boxelder bugs, flies, fruit flies, hornets, mosquitoes, non-biting gnats, small flying moths, wasps, and yellow jackets. Raid flying insect spray kills on contact and can be used for your home both indoors and outdoors. Kill gnats, wasps, flies, and mosquitoes with no lingering chemical odor and an Outdoor Fresh scent. The full lineup of our Raid Defense System helps you work smarter, not harder, to fight bugs.