Woot offers DynaTrap Outdoor Insect Trap, 1/4 Acre, Black for $19.99 (orig. $44.99). Free shipping for Prime Members. 

Product Description:
Eliminate flying insects, such as mosquitoes, biting flies, wasps, Asian beetles, or stink bugs, with the DynaTrap Outdoor Mosquito and Insect Trap. The lightweight, portable, and powerful trap is designed to provide protection up to ¼ of an acre. With an easy-to-use design, you simply plug the trap in to a standard 120v outlet and let it do the work for you. Not one, not two, but three layers of protection keep flying pest insects away from you and your family. First, a UV fluorescent bulb generates a warm light, attracting insects. Then a second lure, an exclusive Ti02 titanium dioxide-coated surface, produces CO2 that's irresistible to mosquitoes. Third, a powerful yet whisper-quiet vacuum fan sucks insects into the retaining cage where they dehydrate and die. The DynaTrap Outdoor Mosquito and Insect Trap is an ideal choice for homes with kids and pets. This trap has an integrated hook that allows for easy hanging, if a table top location is not available. 

• What We Catch – Attracts and traps mosquitoes, biting flies, house flies, moths, no-see-ums, June beetles, wasps, yellow jackets, stink bugs, gnats, and biting midges
• 3-Way Protection – The AtraktaGlo UV light, diffuser, and TiO2 coating lure insects to the trap, then the whisper-quiet fan sucks them into the basket
• Powerful Protection – The trap effectively protects up to 1/4 acre of your property
• All-Weather Construction – A durable, lightweight design for indoor or outdoor use. Keep it continuously running for non-stop insect protection
• Discreet Design - The sleek black finish will effortlessly blend in with your décor and the whisper-quiet fan will make you forget it’s even there
• Easy to Use – Place traps 3-6 feet above the ground and 20-40 feet away from people. Plug the trap in and empty the catch basket as needed