Cecropias will fly at 45 degrees so your cold spell may not be the problem. It could just be the local cecropias are not out right now. Put her in a Ziploc container or bag for 5 days (longer if it is still cold outside) in the fridge. Then put her outside again for 2 nights. That gives her another chance of being in sync with the locals. It is a long shot since she is already laying eggs but it paid off for me last year with a polyphemus. KC

I'm sure your moths are no longer coupled but for future reference, cecropias will disengage when it gets dark. If for some reason, I need them apart sooner than when the sun goes down, I'll put them in a dark room, set a timer for 15 minutes and then go back in to figure out where the male has flown (since he was on the outside of the cage) so I can let him go. Males can mate multiple times. I put the females in paper bags as soon as I realize they have disengaged. Most tend to start laying eggs soon after disengaging and will continue to lay eggs for a few days. OTOH, I have run into a few that do not like bags. I had one this year that sat for two days before laying eggs. Normally when this happens, I let the girl go and move on to another but this year wild males have been few and far between so I waited her out. Anyway, periodically check on her progress until you have enough eggs and then let her go. If for some reason, you want to lengthen the time you're raising cecropia cats (I do it for teaching purposes), there are two things you can do (that I know about): 1) Experiments show you can keep the eggs in the frig for up to 10 days without affecting the developing cats. Put a few in the frig and you can stagger when the cats are coming out. 2) Raise some on box elder maple (Acer negundo). Some people call it the "poison ivy tree" because young trees resemble poison ivy. Cecropias cats still reach full size but they can take up to 3.5 months to get there. WARNINGS: 1) Heat and high humidity are the enemy when raising cecropias. If they get too much of both, the cats can start dropping like flies, especially if conditions are crowded. If you raise them outside, make sure you have good air circulation. 2) Cecropia cats love to drown themselves so if you are raising them on branches placed in water, do what you can to make it difficult for the cats to reach the water. You mentioned raising them on multiple plants. While the eggs are developing, I suggest taking cuttings from each plant you are considering and making sure each holds up in water for at least 3 or 4 days. Some leaves (including most maples I've tried) wither in nothing flat so they are pretty useless unless you are using rearing bags on the trees. My latest cecropia story: Went to an outside wedding reception yesterday. It was on the west side of town, the area where I release my male moths. So, I took 3 cecropia and 4 polyphemus with me, the plan being my kids would release them somewhere in the area. The kids ended up making a bee line for the pool (this was a very laid back reception) so I took the two containers over to the side of the yard for later. The moths, especially the cecropias, ended up being the hit of the party. I gave many moth talks, lots of people took moth pics and the bride absolutely loved that I brought the moths. Some drunk women apparently did not believe that I planned on releasing the moths and took it upon herself to set them free, greatly disappointing the bride's sister who had not seen them yet. KC

Birds generally don't find the seeds themselves, but they might attack the sprouts as soon as they emerge.

The short back and forth flying display is called a shuttle display. The male may use it in front of a female in courtship, but also sometimes in front of another male for aggressive territorial reasons.