Congratulations! 
Gilmer gets the prize for specificity, lawn grub seeming to be gardener slang for white grub. Getting down into it, white grubs are larvae of the beetle genus
Phyllophaga (e.g., June bugs). Larvae of other members of the family
Scarabaeidae are also called white grubs.
Trach, good shot. All your members of
Coleoptera have larvae, I guess, but they don't all look like white grubs. Ladybug larvae are black w/red spots!
Will someone go next?