Polydrusus Weevil vs Rose Slug Sawfly

Side-by-side species comparison

Attribute Polydrusus Weevil Rose Slug Sawfly
Scientific Name Polydrusus sericeus Endelomyia aethiops
Order Coleoptera Hymenoptera
Family Curculionidae Tenthredinidae
Size 5-8mm 4-5 mm
Habitat Hedgerows Underground
Diet Herbivores Herbivores
Regions Europe Europe, introduced to North America
Conservation Least Concern Least Concern

Polydrusus Weevil

A small weevil covered in brilliant green scales that sparkle in sunlight. It is commonly found on birch and hazel trees.

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Did You Know?

The green coloring comes from tiny iridescent scales that rub off easily leaving the beetle looking dull brown underneath.

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.