C. gemmatus, also known as the Indian Flower Mantis, is an easy mantid to keep. I have had very little problem keeping them. They are a smaller species of mantid similar to P. wahlbergii. This species can be fed houseflies as the staple food for the adult mantids.
One thing I like about the Indian Flower Mantis is the way they hunt. I like mantids that actively go after their food rather than sit around waiting for it to come to them. Indian Flower Mantids don’t have a problem going after food that is in close enough range to chase down.
Breeding the Indian Flower Mantis is also easy. I have noticed very little cannibalism when it comes to breeding. Still, I am very careful when introducing the male, giving at least 2 weeks before introducing them and always while the female is eating.