Rose Slug Sawfly vs Waterlily Leaf Beetle

Side-by-side species comparison

Attribute Rose Slug Sawfly Waterlily Leaf Beetle
Scientific Name Endelomyia aethiops Galerucella nymphaeae
Order Hymenoptera Coleoptera
Family Tenthredinidae Chrysomelidae
Size 4-5 mm 5-7 mm
Habitat Underground Ponds & Lakes
Diet Herbivores Herbivores
Regions Europe, introduced to North America Europe, Northern Asia
Conservation Least Concern Least Concern

Rose Slug Sawfly

A small, dark sawfly whose slug-like larvae skeletonize rose leaves by feeding on the upper leaf surface. Larvae are pale yellowish-green and covered in a thin mucus layer.

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Did You Know?

Damaged rose leaves develop a characteristic translucent, papery appearance as only the lower epidermis remains after larval feeding.

Waterlily Leaf Beetle

A small, brown leaf beetle that feeds on the upper surfaces of waterlily pads. It creates distinctive feeding grooves across floating leaves.

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Did You Know?

Although it feeds on aquatic plants, the beetle cannot swim and will drown if it falls off a lily pad into open water.