Brink, D.J.Van den Berg, N.G.Prinsloo, Linda CharlottaHodgkinson, I.J.2007-06-042007-06-042007-04-07Brink, DJ, van den Berg, NG, Prinsloo, LC & Hodgkinson, IJ 2007. 'Unusual coloration in scarabaeid beetles', Journal of Physics D: Applied Physics, vol. 40, no. 7, pp. 2189-2196 [http://www.iop.org/EJ/journal/JPhysD]10.1088/0022-3727/40/7/0501361-6463http://hdl.handle.net/2263/2615In this paper we investigate the reflection of circularly polarized light from the exocuticle of the scarabaeid beetle Gymnopleurus virens. Reflection spectra are deeply modulated, exhibiting a number of relatively narrow well-defined peaks, which differ from previously studied specimens. By comparing model calculations and electron microscopy work with the recorded spectra, we can propose the presence of specific structural defects responsible for the unusual spectra.793667 bytesapplication/pdfenAmerican Institute of PhysicsScarabaeid beetlesGymnopleurusScarabaeidaeBeetlesReflection electron microscopyProtective coloration (Biology)Spectrum analysisPolarization spectroscopyPolarization (Light)Article