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Fig. 1. Test wings. (A) Photomicrograph of a thrip's wings. (B,C) Diagrams of a
bristled model wing (B) and a solid model wing (C). c, chord length
of a wing; cm, membrane width of a bristled wing;
ch1, length of cylinders on the leading edge;
ch2, length of cylinders on the trailing edge; D,
distance between neighbouring cylinders or bristles; d, diameter of
cylinders or bristles; tm, thickness of a wing;
xw, wing length; x,y,z, wing-fixed coordinate
system.