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. 2015 Jul 6;12(108):20150119. doi: 10.1098/rsif.2015.0119

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© 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 1. — Experimental set-up. An open test section; a closed return wind tunnel was used. The beam from the 1 J pulse laser system was guided via mirrors to a diverging lens followed by a collimating lens and a rectangular aperture which created an illuminated volume that was back-reflected by a large planar mirror on the opposite side of the test section. The locusts were tethered on a sting that allowed for adjustment of body angle and were positioned just in front of the illuminated volume. Eight high-sensitivity cameras captured the volume from below. Photographs of the apparatus are available in the electronic supplementary material, figure S1. (Online version in colour.)