Skip to main content

Scarlet Malachite Beetle

Malachius aeneus

Britain's most beautiful beetle. Emerald-green with scarlet wing tips. Critically declining.

Curated and rated by Sheriff Six-Legs and The Wild Pest field team · Six Legs Score™ (69/100, Curious tier) · Published Apr 25, 2026 · Updated Apr 28, 2026 · Released CC BY 4.0

69Six Legs
Six Legs Score™
69 / 100

The scarlet malachite beetle is one of Britain's most beautiful and rarest beetles — brilliant metallic emerald-green elytra with vivid scarlet-red wing tips. The species is critically declining across western Europe and is now restricted to a handful of UK churchyards and ancient hay meadows. Scarlet malachite beetle larvae are predators of other small insects in dead-wood and grassland habitat. The species is a flagship of UK invertebrate conservation and one of the most-photographed beetles in British nature media.

A scarlet malachite beetle (Malachius aeneus), small beetle with brilliant metallic emerald-green elytra and vivid scarlet-red tips on the wing covers.
Scarlet Malachite BeetleWikimedia Commons · CC BY-SA 4.0
Size
Adult 7-10 mm
Lifespan
Adult ~6 weeks; full life cycle 1 year
Range
Western Europe and parts of western Asia; in steep decline across most of range
Diet
Adults: pollen and nectar. Larvae: predatory on small invertebrates.
Found in
Ancient hay meadows, traditional churchyards, woodland edges

Field guide

Malachius aeneus — the scarlet malachite beetle — is one of about 6,000 species in family Melyridae and one of the most striking small beetles of European meadow and woodland edge. Adults are 7-10 mm long with brilliant metallic emerald-green elytra (the family-typical malachite-green color) and vivid scarlet-red tips on the wing covers. The species is found across Europe and parts of western Asia in herbaceous meadows, woodland edges, and (notably in the UK) ancient unmown churchyards and hay meadows. Larvae are predatory, feeding on other small insects in dead wood, leaf litter, and soil. Adults feed on pollen and nectar — primarily from buttercups, umbelliferous flowers, and other open-meadow species. The species has experienced steep population declines across western Europe due to the loss of permanent hay meadow habitat to agricultural intensification (silage cropping, fertilization, herbicide use). In the UK, the species is now restricted to a handful of ancient churchyards and traditional hay meadows in southern England and is the focus of intensive conservation effort by Buglife and the UK Wildlife Trusts. The scarlet malachite beetle is a flagship UK invertebrate conservation species and one of the most-photographed beetles in British nature media.

5 wild facts on file

The scarlet malachite beetle is one of the most beautiful small beetles in Britain — brilliant emerald-green with scarlet wing tips.

AgencyRoyal Entomological SocietyShare →

She is critically declining in the UK — restricted to a handful of ancient churchyards and traditional hay meadows in southern England.

AgencyBuglife UKShare →

She depends on ancient unmown hay meadow habitat — agricultural intensification has eliminated most of her former range.

AgencyUK Wildlife TrustsShare →

Larvae are predators of other small insects in dead wood and leaf litter — adults feed on pollen and nectar.

AgencyRoyal Entomological SocietyShare →

The scarlet malachite beetle is a flagship UK invertebrate conservation species and one of the most-photographed beetles in British nature media.

AgencyBuglife UKShare →
Cultural file

The scarlet malachite beetle is one of the centerpiece species of UK invertebrate conservation. Buglife, the Royal Entomological Society, and the UK Wildlife Trusts have run targeted recovery programs since the 2000s. The species is a flagship for hay meadow conservation across Europe.

Sources

AgencyBuglife UKAgencyRoyal Entomological Society
Six’s Field Notes

Get a new wild file every Friday.

One bug. One fact you can’t un-know. Sheriff’s commentary. No filler. No ads. Unsubscribe anytime.