Identification: beetle

I found this creature by hearing it first, flapping desperately at a window to get out of our kitchen two nights ago.
I caught it, put it back out in the garden, and then found it (the same one?) at the back door half expired the next morning.
Can anyone help with its identification?
Thanks.
Shelley

 

Ten-lined June Beetle: Google images link

AKA Polyphylla decemlineata, see link at wikipedia