I agree...it is SAD when they that happens. I've been raising American Lady caterpillars for the last month or so. The first two I found were parasitized by a kind of fly and didn't even get very big before succumbing. But now i have one that' I brought in when still tiny, so it might make it. This species makes nests, so I had to open its nest to take a picture. Then I gave it a fresh piece of Sweet Everlasting to use and put it back in its container.