Optical Lattices on Wings of Apatura Butterflies

George O. Krizek; Guy M. Hagen; Pavel Křížek; Markéta Havlová; Michal Křížek

doi:10.3157/021.124.0302

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George O. Krizek,¹ Guy M. Hagen,² Pavel Křížek,² Markéta Havlová,³ Michal Křížek^*

¹2 Smithsonian Institution, Washington, DC 20560, United States, gokrizekmd@yahoo.com
²3 Institute of Cellular Biology and Pathology, First Faculty of Medicine, Charles University in Prag
³4 Department of Zoology, Faculty of Science, Charles University in Prague, Viničná 7, CZ - 128 44 Pr

^* Institute of Mathematics, Academy of Sciences of the Czech Republic, Zitná 25, CZ - 115 67 Prague 1, Czech Republic Corresponding author Email: krizek@cesnet.cz

Abstract

Optical microscopy of scales from the wings of the male butterfly Apatura ilia reveals parallel fibers with a spacing of about 710 nm. These fibers, together with tiny transverse grooves, cause violet blue or blue iridescence due to interference of light on the wings, which normally have brown pigmentation. Here we establish the dependence of the sudden color changes on variable illumination and observation angle.

Citation Download Citation

George O. Krizek, Guy M. Hagen, Pavel Křížek, Markéta Havlová, and Michal Křížek "Optical Lattices on Wings of Apatura Butterflies," Entomological News 124(3), 176-185, (1 November 2014). https://doi.org/10.3157/021.124.0302

Received: 14 January 2014; Accepted: 1 June 2014; Published: 1 November 2014

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