when I mated my creos i gave her a cricket the size of her abdomen each day and tossed in a BBF for a midnight snack for a full week leading up to mating.
I kept the male out of the aquarium that houses all my mantis enclosures (mostly deli-cups) but still in the same room. when I put them together the first day he crawled near but when I ran off to answer the call of nature they were on opposite sides of breeding box like she mabey struck at him and he fled, so I seperated them and put them together a day or two later. at first he did not seem to notice her (chewing on juicy cricket, she saw him and turned to face him) they were about 6 inches apart and i tried using a chop stick and blowing him towards her. finally I just walked to the living room and glanced over occasionally. this seemed to make them less apprehensive perhapse because within 10 minutes he was mounted on her. I tossed in 2-3 BBF so she could eat something besides him. she moved all over with him in tow. she just laid 2nd ooth yesterday