Golden Reed Beetle vs Spanish Fly

Side-by-side species comparison

Attribute Golden Reed Beetle Spanish Fly
Scientific Name Donacia vulgaris Lytta vesicatoria
Order Coleoptera Coleoptera
Family Chrysomelidae Meloidae
Size 7-10 mm 10-22mm
Habitat Wetlands Orchards
Diet Herbivores Herbivores
Regions Europe, Northern Asia Europe, Asia
Conservation Least Concern Least Concern

Golden Reed Beetle

A slender, metallic beetle with golden to coppery-green coloration and elongated antennae. It is commonly found resting on emergent aquatic vegetation in ponds and marshes.

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Did You Know?

Adults possess hydrophobic hairs on their underside that trap a thin film of air, allowing them to survive brief submersion.

Spanish Fly

A slender, metallic green blister beetle with soft elytra. It produces cantharidin, a potent blistering agent, as a chemical defense.

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Did You Know?

Cantharidin from this beetle has been used in medicine for centuries but it is extremely toxic and can be lethal if ingested.