Cal, what did you feed her?
If she has mated, she will lay an ootheca — a rigid egg case containing her eggs — on a branch or fencepost or something sturdy. Then she will die. Her babies will hatch in the spring. I'm not sure about the timing of the cycle in your warm climate.
Here's our mantis thread
https://garden.org/thread/go/1...
Egg cases
Fat mama
