Supplementary Figures from Wing scale ultrastructure underlying convergent and divergent iridescent colours in mimetic <i>Heliconius</i> butterflies

Figure S1 Representative small angle X-ray scattering data for a region of a H. sara and the radial integrations of this 2d pattern; Figure S2 Dark field microscopy images; Figure S3 Reflectance spectra for H. sara from Panama and Ecuador; Figure S4 Neighbour joining phylogenetic tree of Heliconius species based on 745 bp of mitochondrial CoI sequence; Figure S5. Tetrahedral colour space plots