N a large pale prominent moth, Cerura vinula, whose larvae feed on willow and poplar, and are bright green with a masklike red head and claspers modified as "tails" that are protruded and raised in a state of alarm: family Notodontidae 银色天社蛾
N（名词） a large pale prominent moth, Cerura vinula, whose larvae feed on willow and poplar, and are bright green with a masklike red head and claspers modified as "tails" that are protruded and raised in a state of alarm: family Notodontidae 银色天社蛾