Lophocampa longipennis is a moth of the Arctiidae family. It was described by Paul Dognin in 1908. It is found in Bolivia.
Head and thorax orange slightly tinged with brown; ... abdomen orange, the hair at base and ventral surface pale yellow. Fore wing long and narrow; pale yellow, the costa and inner margin more orange; ... Hind wing very pale yellow, semihyaline.
Exp,. 40 millim.Lophocampa longipennis Wikipedia