Fig. 1From: Unique wing scale photonics of male Rajah Brooke’s birdwing butterfliesRajah Brooke’s birdwing, Trogonoptera brookiana, and reflectance spectra. a, b Photographs of the upper (dorsal) and lower (ventral) side of a male. c-f Reflectance spectra; the number of the spectra corresponds to the wing and body location indicated in (a, b). Scale bar: a, b 5 cmBack to article page