Figure 1 from: Peralta-Rincon JR, Escudero G, Edelaar P (2017) Phenotypic plasticity in color without molt in adult grasshoppers of the genus Sphingonotus (Acrididae: Oedipodinae). Journal of Orthoptera Research 26: 21-27. https://doi.org/10.3897/jor.26.14550

Figure 1 - Example of an image taken for color measurement. The individual was held in place by the transparent plastic lid of the Petri dish to obtain a correct position. Brightness and hue were measured in the red diamond-shaped part of the thorax. The color of a small area of the background paper was also measured (red circle) as a reference gray standard to correct for lighting variation among images.