At some point from my last post until I got home from work, the wrigglers disappeared. The male angel continued to go back to the leaf and look for them for a few hours last night. Not sure who got them. But, as more experienced people told me, my pair seems to be improving with each effort.
Updated log:
Mated 2/26, eggs eaten 20 minutes later
Mated 3/9, eggs eaten 3/10
Mated 3/19, eggs eaten 3/20
Mated 3/29, wrigglers disappeared 4/1