Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae

Abstract The ventral face of the wings of the butterfly Dione vanillae is covered with bright and shiny silvery spots. These areas contain densely packed ground- and coverscales with a bright metallic appearance reflecting more than 50% of light uniformly over the visible range. Our analysis shows t...

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Autores principales:	Andrés Dolinko, Luisa Borgmann, Christian Lutz, Ernest Ronald Curticean, Irene Wacker, María Sol Vidal, Candela Szischik, Yidenekachew Donie, Marina Inchaussandague, Diana Skigin, Hendrik Hölscher, Pablo Tubaro, Ana Barreira
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/10c7764424bb4b36b0957952c3b01fa9
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spelling	oai:doaj.org-article:10c7764424bb4b36b0957952c3b01fa92021-12-02T17:18:22ZAnalysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae10.1038/s41598-021-98237-92045-2322https://doaj.org/article/10c7764424bb4b36b0957952c3b01fa92021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98237-9https://doaj.org/toc/2045-2322Abstract The ventral face of the wings of the butterfly Dione vanillae is covered with bright and shiny silvery spots. These areas contain densely packed ground- and coverscales with a bright metallic appearance reflecting more than 50% of light uniformly over the visible range. Our analysis shows that this optically attractive feature is caused by the inner microstructure of the scales located in these areas. Electron microscopy of cross sections through the scales shows that upper and lower lamina, supporting trabeculae, and topping ridges can be approximated by a ‘circus tent’-like geometry. By simulating its optical properties, we show that a moderate disorder of this geometry is important for the uniform reflection of light resulting in the silvery appearance.Andrés DolinkoLuisa BorgmannChristian LutzErnest Ronald CurticeanIrene WackerMaría Sol VidalCandela SzischikYidenekachew DonieMarina InchaussandagueDiana SkiginHendrik HölscherPablo TubaroAna BarreiraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andrés Dolinko Luisa Borgmann Christian Lutz Ernest Ronald Curticean Irene Wacker María Sol Vidal Candela Szischik Yidenekachew Donie Marina Inchaussandague Diana Skigin Hendrik Hölscher Pablo Tubaro Ana Barreira Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
description	Abstract The ventral face of the wings of the butterfly Dione vanillae is covered with bright and shiny silvery spots. These areas contain densely packed ground- and coverscales with a bright metallic appearance reflecting more than 50% of light uniformly over the visible range. Our analysis shows that this optically attractive feature is caused by the inner microstructure of the scales located in these areas. Electron microscopy of cross sections through the scales shows that upper and lower lamina, supporting trabeculae, and topping ridges can be approximated by a ‘circus tent’-like geometry. By simulating its optical properties, we show that a moderate disorder of this geometry is important for the uniform reflection of light resulting in the silvery appearance.
format	article
author	Andrés Dolinko Luisa Borgmann Christian Lutz Ernest Ronald Curticean Irene Wacker María Sol Vidal Candela Szischik Yidenekachew Donie Marina Inchaussandague Diana Skigin Hendrik Hölscher Pablo Tubaro Ana Barreira
author_facet	Andrés Dolinko Luisa Borgmann Christian Lutz Ernest Ronald Curticean Irene Wacker María Sol Vidal Candela Szischik Yidenekachew Donie Marina Inchaussandague Diana Skigin Hendrik Hölscher Pablo Tubaro Ana Barreira
author_sort	Andrés Dolinko
title	Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
title_short	Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
title_full	Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
title_fullStr	Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
title_full_unstemmed	Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
title_sort	analysis of the optical properties of the silvery spots on the wings of the gulf fritillary, dione vanillae
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/10c7764424bb4b36b0957952c3b01fa9
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Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae

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