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Figure 4


Fig. 4. Measurement of the thickness of a seta from the beetle Gastrophysa viridula not in contact with the substrate. (A) TXM image of the spatula region of a seta which is not in contact with the surface. (B,C) Line scans taken at positions 1–8, as marked in A. To increase the signal to noise ratio, the scans have been averaged between the two lines of each position.