Pat Kiewicz wrote in
:

What you have there looks like an adult Oriaental beetle
(Anomala orentalis). This is a "newer" pest in the US, still
spreading, and actually seems able to out-competing Japanese
beetles as pest of lawns and gardens. The grubs feed on roots
of plants and the adults leaves and flowers.

the adults also eat plant roots. during the day the adults burrow
into the soil around the plant & eat roots. in the evening they climb
up & eat the upper parts of the plant.
lee