![Beetle Scales thumbnail](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/photocontests/2016/15-contest-16.jpg?t=638430713994869599)
Beetle Scales
Fluorescent emission from the scales of male Hoplia coerulea beetle. Fluorophores embedded in the scales covering the beetle’s elytra, or wing cases, make them naturally fluorescent. [Image taken from the 2016 After Image photo contest.]
—Sébastien R. Mouchet University of Exeter