 Chrysiridia rhipheus ( Madagascan sunset moth ) is a day @-@ flying moth of the family Uraniidae . It is considered one of the most impressive and appealing @-@ looking lepidopterans . Famous worldwide , it is featured in most coffee table books on Lepidoptera and is much sought after by collectors . It is very colourful , though the iridescent parts of the wings are only visible in bright light . The wings are pale brown with a darker brown band along the mid-line . The forewings are also marked with a white spot at the base of the band . The hindwings are pale brown with a darker brown band along the mid-line . The