Data of transparency & detectability of 33 Ithomiini species, and PA concentration and measures of unpalatability for 10 of these species

1-Average transparency and detectability by avian predators (chromatic & achromatic contrast in just noticeable difference units [JNDs] for UVS- & VS-vision in large gap & forest shade light conditions) for the 33 Ithomiini species of the study. 2-Data for behavioural experiments with chicks to test unpalatability of 10 Ithomiini taxa (indicated in bold red in the first list) are also provided, including the number (& assigned colour ) of experimental pellets attacked at each trial (for a total of 12 trials per chick) for all 6 chicks tested for each butterfly species. 3-PA concentrations (μg/mg) measured for individual butterflies of the 10 selected taxa are also given.