Ragwort Flea Beetle vs Jewel Frog Beetle

Side-by-side species comparison

Attribute Ragwort Flea Beetle Jewel Frog Beetle
Scientific Name Longitarsus jacobaeae Sagra longicollis
Order Coleoptera Coleoptera
Family Chrysomelidae Chrysomelidae
Size 2-3 mm 18-30mm
Habitat Farmland Forests
Diet Root Feeders Herbivores
Regions Europe Asia
Conservation Least Concern Least Concern

Ragwort Flea Beetle

A small black flea beetle that feeds on ragwort plants. Successfully used as a biological control agent for invasive ragwort in Australia and New Zealand. Larvae mine in roots.

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Did You Know?

One of the most successful biological control agents ever used, dramatically reducing ragwort in multiple countries.

Jewel Frog Beetle

A spectacular metallic beetle with colors ranging from deep red to purple and green. Males have greatly enlarged hind femora.

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Did You Know?

The males oversized hind legs serve no locomotory purpose and are used solely for fighting and grasping during mating.