Reports are coming in that the Lady Bugs are now active. We have Lady Bugs for sale at our Reno nursery. Lady Bugs are veracious aphid eaters. Plus they're adorable and fun to watch.
Update
As of 06/16/2009, It's definite, Lady Bugs are out and about. Some gardeners release Lady Bugs into selected and/or enclosed garden spaces. Nothing guarantees that the Lady Bugs will stay where you release them. Some gardeners plan elaborate release parties. With release parties, if the Lady Bugs decide not to stay, or if they get blown about by unforeseen winds, at least everyone at the party gets the chance to see the Lady Bugs at least once before they're off defending the neighborhood.