Another White Grub

This is only the second White Grub (family Scarabaeidae) I've found in our yard, and both have been in the front yard. Unfortunately I still can't identify the genus and species of the scarab beetle this guy will turn into, though I believe he belongs to Cyclocephala (Masked Chafers) because of my observation of the raster:

http://lanwebs.lander.edu/faculty/rsfox/invertebrates/cyclocephala.html

I couldn't see a line in the setae, which would identify him as Phyllophaga (a May/June Beetle) but I wasn't able to look that closely:

As you can see in the photos, the grub wasn't too happy about being examined. You would be too if a giant plucked you out of your cozy hole in the ground!

As always, Richard Fox of Lander University provides some of the best anatomical diagrams:

You can read more about the anatomy of a white grub as you read through Fox's dissection exercise.