Rose chafer

Cetonia aurata

''Cetonia aurata'', called the rose chafer or, sometimes, the green rose chafer or goldsmith beetle, is a beetle, 20 mm long, that has a metallic green colouration and a distinct V-shaped scutellum.

The scutellum is the small V-shaped area between the wing cases; it may show several small, irregular, white lines and marks.

The underside of the beetle has a coppery colour, and its upper side is sometimes bronze, copper, violet, blue/black, or grey.

''Cetonia aurata'' should not be confused with the North American rose chafer, ''Macrodactylus subspinosus''.

The rarely seen noble chafer is very similar to the rose chafer. One way to identify it is to look at its scutellum; on the noble chafer the scutellum is an equilateral triangle, but on the rose chafer it is an isosceles triangle.
Big green beetle (Cetonia aurata) on flower bud.Macro photo Cetonia aurata or Green Chafer beetle on a flower. Shallow depth of field Bulgaria,Cetonia,Cetonia aurata,Geotagged,Rose chafer,aurata,beetle,blue,cardi,cardone,cardoni,cardoon,cardunculus,carduni,chafer,cynara,decorative,family,garden,green

Appearance

Rose chafers are capable of very fast flight; they fly with their wing cases down. They pull their feet inside their legs and can push them out, if needed.

They feed on pollen, nectar, and flowers, especially roses. They can be found among roses on warm sunny days from May until June or July, and occasionally as late as September.

Rose chafers are found in southern and central Europe and in the southern part of the United Kingdom, where they sometimes seem to be very localized. They are a very beneficial saprophagous species . Their larvae are the insect equivalent of earthworms.
Rose Chaffer Lokrum Island, Croatia (May, 2016).
Beetles up to 20 mm long, with a metallic green color and a distinct V-shaped scutellum (the small V-shaped area between the wing cases). it may show several small, irregular, white lines and marks. The underside of the beetle has a coppery colour, and its upper side is sometimes bronze, copper, violet, blue/black, or grey.        Cetonia aurata,Croatia,Geotagged,Rose chafer,Spring

Reproduction

The larvae are C–shaped and have
⤷ a firm, wrinkled, hairy body,
⤷ a very small head,
⤷ and tiny legs.

The larvae overwinter wherever they have been feeding, which may be in compost, manure, leaf mould, or rotting wood. They grow very quickly and will have moulted twice before the end of autumn. They have a two-year life cycle.

They pupate in June or July. Some adult beetles may emerge in autumn, but the main emergence is in spring, when the beetles mate.

After mating, the female beetles lay their eggs in decaying organic matter and then die.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderColeoptera
FamilyScarabaeidae
GenusCetonia
SpeciesC. aurata
Photographed in
Bulgaria
Croatia