Author： CHIANG H. C.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.66, Iss.3, 1973-05, pp. : 704-704
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Abstract
During a study on the distribution of midges (Diptera: Cecidomyiidae), a simple trap was developed to catch these insects. The basic structure is a wooden board (12×12 in., ½ in. thick), covered with white cloth and standing 4 in. from the ground. A 2×l8-in. metal strip is fixed about 4 in. above the board (Fig. 1). The under side of the strip is smeared with no. 20 motor oil. Threaded ½-in.-diam rods are used as legs and props. The board and the strip are fixed on the threaded rods at the indicated heights by nuts. Insects are caught on the oil surface. They can be easily removed with forceps and cleaned in kerosene.
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