Over bedded bluegills: McGinty Wooly Worm on a 1XL #10. Short red tag/tail, twisted yellow/black chenille, palmered brown hen hackle. Just flip it out and raise the rod so the fly is just making a wake towards you.
They're fairly durable and even if they were not, they're so simple you can tie 30 of the things an hour anyway.
Later in the summer, when the bigger gills go a little deeper, I like a weighted nutria (or any darker brown) nymph tied sloppy (no wing case, no legs, just a tapered glob of fur over some 015. wire). 1XL or 2XL #8-12. I try and get it down 5-6 feet along the edges of the wed beds and brush piles. I just let it sink and then do a slow lift. I fancy they take it for a dragonfly nymph, but not being a bluegill, what do I know? It seems to work though..