FIG. 1.-Our three injurious rose slugs. All more or less enlarged.
FIG. 2.-Eggs of the three rose slugs and where they are placed.
FIG. 3. Our three injurious rose slugs and how they differ. Greatly enlarged.
FIG. 5.-Where the three rose slugs change to adult sawflies: Bristly rose slug, in cocoons on leaves or rubbish; European rose slug, in cocoons in the ground; coiled roseworm, in cells hollowed out in dead twigs or brashy wood.