That's too bad! I hope you are having good luck with your adult pair. 
So she died ? I guess I missed the ending. Always sucks when it's a sub-adult.
Like a green caterpillar?
:lol:
Why would you even suggest this as a possibility, agent A? Mantids in captivity are rarely subjected to poisonous food. There are so many other causes of death that are far more likely. And I would not classify all sub-adults as "really hardy." Sure, younger instar nymphs have a higher risk of death. But mantids at all stages of life incur risk regularly... even sub-adults. Unless you have constructive imput based on previous experience, it's better not to mislead other inexperienced keepers with unlikely conjecture.
Congrtatulations on keeping mantids for four years, Agent A (BTW, is there an Agent B?
) and never losing a sub adult. Sometimes a member will post his concerns about an ailing mantis or mantids, and some of us will sympathize and try to guess the reason in order to provide a remedy, often to no avail. Here, though, the mantis is dead, so speculation on its COD does not seem productive. It seems extraordinarily unlikely that Arkanis and his wife would expose their mantis to harmful chemicals, though.
