Keep them in a small enclosure until adult, AKA a 32oz deli cup. Anything else may be too big and you may lose the mantis or it won’t be able to find food.
No, not possible with Orthodera. Found nothing on Sphodropoda sp. Nothing on Bolbe either. Wow nothing on Neomantis either. I have heard or Neomantis being parthenogenic but nothing from searches on the topic.