This device might be a bit savage, but sometimes you gotta do what you gotta do. The LED blue-violet bulbs on this bug zapper lamp ($16, originally $18) emit a specific wavelength with a powerful mosquito attraction, quickly zapping them before they get the chance to fly away. They also work for all kinds of pesky insects, provide a good source of light, are completely chemical and scent-free, and require minimal cleaning since the mosquitoes just slip right off.