Pair of coreid bug nymphs, possibly Leptoglossus
Family Coreidae (Leaffooted Bugs)
8/20/06
These were hanging out on a leaf of my brugmansia on the side deck. I put an aphid near them, thinking they were assassin bug nymphs, but they ignored it. It was later pointed out to me that the feeding tube of these is longer than the "beak" of assassin nymphs, and the antennae are different as well.

8/22/06 - Went back to check on them today - they're still on the same plant but on a different leaf, still hanging out together.