I don't fully agree with the paragraph on"Wing surface". For reason please look at different insect wing structures incl. those of Myrmaridae, "fairy flies". E.g.: http://3.bp.blogspot.com/_Gp5CPG8CswI/SUVbzNczqhI/AAAAAAAAATk/5iawaUriwsM/s400/1-SWalker-Fairy-Fly_461.jpg
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