Fig. 3. Composite images of representative species from several nymphalid subfamilies (A) Prepona gnorima, (B) Baeotus baeotus, (C) Memphis xenocles and (D) Morpho cypris. A shows two differently colored localized bands of polarized iridescence while B and C exhibit prominent bands of polarized reflectance with an iridescent ground coloration that is polarized to a lesser extent. D presents a nearly uniform polarization pattern over the entire wing surface with the exception of the white diffuse reflecting patches along the midline of both wings. False-colored portions of the composite images are coded for intensity of polarization according to the color bar in the corner of each figure. False-color portions of the images are coded as in Fig. 1.