Whilst they are loosely based upon scarab beetles the manner the movies depicted them eating live humans is mostly fictional. I imagine they were selected mostly because scarab beetles were held in high esteem by the ancient Egyptians but i'm not aware of a family that actively targets human sized prey, at least not whilst they're alive.
Watching and listening to a mother and her 2 young girls doing their laundry at the laundromat. Their light-hearted bickering was amusing and made me smile.