Would be curious to know that as well. And I did notice one section was just sitting in a puddle of goo. Same section that was particularly awful looking.
Aww... my heart broke for Banjo, he seemed so dejected. Really hope I can help him eat another or that he's figured it out.
I bought some from Mulberry Farms last Fall. He ate 1 and no more. But he was really picky and probably scared out of his mind. Bet he'd eat them now. They're supposed to be good feeders, but fragile. Mine lasted kind of a long time (cpl months, maybe?) I think cuz I left them in petrie dish they came in, and didn't touch or move them much. They're susceptible to germs if I recall correctly. 99 did eventually die tho. It's a shame, they're not cheap. But with other bug eating pets around, worth a shot. They need to stay warm, (80?) and eat only mulberry leaf chow. They can eat carrots but only for a few days. Mine had some carrots as one of their last meals. No, they didn't all die at once, but I didn't have any more food when I gave them the carrots, and some were already starting to die. They're cute tho, when alive.
Now I'm thinking I should try them again.