Offer the insect to use a simple device can be made from scrap materials for one evening. The principle of its operation is to lure insects electric light and catching them with the built-in fan housing.
For the production of “electroshock” ‘ll need a small electric motor with a power of 10-20 W (for example, from any electromyographies class III), lamp cartridge, and two cans of different diameters. Aluminum plate 20X100 mm cut out fan blades. In the centre drill a hole the diameter of the motor shaft. Aligning the propeller shaft Assembly with two thick plastic washers, attach the “hub” of epoxy glue. The blades fold back at a 30-45°angle.
Elektroschock:
1 — rubber ring 2 — motor, 3 — body, 4 — fan, 5 — cover, 6 — suspension, 7 — strip-bracket a 8 — M4 screw, 9 — washer, 10 — nylon pouch.
To a round wooden base screw a couple of screws bulb holder. Then connect the two metal strips-brackets to the stator of the motor. Their length should provide a gap of 25-50 mm between the lower point of the lamp and the motor shaft. Insert this node in a tin can of suitable size and fasten the two M4 screws at a level below the blades of the fan located at a lower edge of the banks on Top of 10-15 mm. at the base of the bulb holder, put on the lid, carved from the banks of larger size. Between the edges of the cover and the housing must remain a gap of 50 mm, through it will be visible as the brightest part of the bulb.
Bag-a trap is easiest to do with an old nylon stocking. Put it on the case bottom and secure with a rubber ring. It remains to connect the wiring of the lamp and the motor to the power source and suspend “electroshock” below the ceiling of the veranda.
Such a mini-trap at the base of the motor from a child’s toy and the bulb flashlight is easy to do offline. Hanging on the branches of nearby trees or in the gazebo, you will ensure a relaxing evening in the fresh air.
According to the magazine “Popular mechanics”, USA
Recommend to read Technology of construction of country houses How to build a reliable and durable house? What technologies are currently in use? To these and other questions will find answers in this article. Just note that the choice of technology... DOTTED WITH PUNCH CARD Now, almost everywhere applied electronic machines and appliances, the programme of work which is carried out by using perforated paper tapes and cards. Therefore, it is easy from... 
Comes summer time, and most urban dwellers goes to the city. Tourists of all categories — the people tempered, and unassuming; but those who prefer a holiday in the country, tend to be arranged with the greatest comfort. And, perhaps, one of the difficult problems here — how to get rid of the annoying night insects, obnoxious gnats. A variety of chemicals, aerosols, creams operate for a short time, their odor is not always pleasant, and the composition is not harmless for everyone.