• Laboratoire des sols
  • Université de lorraine

Scarab beetle larvae (cetoine golden)

 you will find these larvae buried in compost, piles of rotting wood...


Classification (systematic position)
Source : INPN


Animal Kingdom
Embranchement (Phylum) : Arthropoda
Subphylum: Pancrustacea
Class: Hexapod
Subclass: Insecta
Order: Coleoptera
Superfamily: Scarabaeoidea



Morphological characteristics
Scarab beetle larvae with irregular cylindrical body (back of body more puffy than front, different from cockchafer body which is more regular) often curved in C-shape, 3 pairs of small legs in front of body, small head and dark brown (smaller than that of the cockchafer larva), melolonthoid type larva (curved and white larva). This larva moves on its back unlike the cockchafer larva.


Life cycle
larvae Cetonia aurata develop slowly (more than 1 year) in soils rich in organic matter and preferably in composts. Females lay eggs in summer.


The rose chafer larva is preferably saproxylophagous, it feeds on decomposed wood throughout its development. It can also feed on other dead organic matter.


Natural predators or regulators
Cetonia larvae are preyed upon by woodpeckers, crows, shrews and moles.


The cetonia larva lives mainly in the stumps of dead trees or in hollow woods but can also be found in certain potting soils and composts.


Interests in the garden
Cetonia larvae allow the recycling of organic matter by feeding on plant waste. They never attack the roots of plants unlike cockchafer larvae, and are therefore very useful for the garden.


Did you know ?
The adult rose chafer feeds on the nectar and pollen of flowers and is therefore one of the pollinating insects. It is also attracted to tree sap .

Last change : 03/04/22
larve cetoine photo 520 700
Figure 1