Bark Gnawing Beetle vs Waterlily Leaf Beetle

Side-by-side species comparison

Attribute Bark Gnawing Beetle Waterlily Leaf Beetle
Scientific Name Trogossita japonica Galerucella nymphaeae
Order Coleoptera Coleoptera
Family Trogossitidae Chrysomelidae
Size 12-18 mm 5-7 mm
Habitat Woodlands Ponds & Lakes
Diet Predators Herbivores
Regions East Asia Europe, Northern Asia
Conservation Not Evaluated Least Concern

Bark Gnawing Beetle

A predatory beetle found under bark where it hunts wood-boring larvae. Its flattened body is well suited to life in bark crevices.

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Did You Know?

It is considered a beneficial species because it preys on destructive bark beetles.

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.