Movie 1
Example of fluorescing 3–OHK pigment on a H. erato butterfly under a hand–held 365 nm LED light.
Ultraviolet and yellow reflectance but not fluorescence is important for visual discrimination of conspecifics by Heliconius erato
Journal of Experimental Biology 2017. 220:1267-1276; doi: 10.1242/jeb.153593