Thanks, Lin! And that is indeed a Dainty Sulphur. Very small and very fast and hard to capture with the camera! They use Spanish Needles as a host plant which is another good reason to leave some growing in a weedy area if you can.
Mom's mad because her soap was preempted by the French Open. So she's off to the grocery store already to get that Parsley (among other things). I isolated the one big Black ST cat I have in his own container because I didn't want him bothering the little guys or getting the container too messy with his relatively large frass. I managed to move him without getting smeared by his osmeterium which is a small miracle. But my hands still stink of Rue even though I've washed them like three times already.