157416 Purple Thorn Selenia tetralunaria Wingspan 32-38mm. A beautifully marked moth that rests with its wings held at an acute angle or folded above body at rest. Adult has angular, jagged margins to its wings. The undersides of the wings (that seen at rest) are purplish-brown, flushed orange-brown towards the base. Each wing has a white, angular crescent-moon mark. Flies April-May, and sometimes in August as a second brood. Larva feeds on deciduous trees and shrubs. Widespread and fairly common.