Phyllobius arborator
Phyllobius arborator is a species of broad-nosed weevils belonging to the family Curculionidae, subfamily Entiminae. This beetle is present in most of Europe. The soil-living larvae feed on the roots of host plants, while the adults feed on leaves of deciduous trees and shrubs. The adults grow up to about  long and can be encountered from April through August. The colour of the body is metallic blue-green. References

External links 
 Biolib
 Fauna europaea

Entiminae
Beetles of Europe
Beetles described in 1797