Alsophila aescularia, the March moth, is a moth of the family Geometridae. It is found throughout Europe and is a pest of fruit trees. The female of this species is wingless. It is usually found resting on tree-trunks. The male has a distinctive way of resting with overlapping wings.The wings appear long and narrow in this position. The males are attracted to light. The palps are very short, the sensors are slightly toothed. The proboscis is stunted. The tibiae of the hind legs have four spurs that are very short in females. The adults are active in March and April .