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flight interception trap
The Flight Interception Trap or FIT is a widely used trapping system for flying insects. It is especially well-suited for collecting beetles, since these animals usually drop themselves after flying into an object,〔()〕 rather than flying upward (in which case a Malaise trap is a better option). Flight Interception Traps are mainly used to collect flying species which are not likely to be attracted to bait or light.
==Construction==
The basis of any Flight Interception Trap consists of an upright placed see-through barrier under which one or more small basins are placed. The barrier may consist of such materials as plastic mesh, a transparent plastic sheet or even Plexiglas, although the latter does not work well for day-active insects since it is visible to them due to its specific refraction. The basins are filled with a preserving fluid such as ethanol〔 (which should be mixed with something bad-tasting (like denatonium) to prevent wild animals drinking it), propylene glycol,〔〔 salt-saturated water or even plain water. The best preservative to keep internal organs in good condition is FAACC, a solution of formaldehyde. A small amount of detergent is added to break the surface tension, causing the insects to sink.
Yellow (a colour which attracts many insects) pans with soapy water may be used alone. The water itself can be an attractant in dry environments ().
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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