Catocala becoming more taxonomically unruly?

Everyone seems to think there is some magic recipe for bait, but I don't think that's the case at all. Myself, and everyone else I know who baits basically just take whatever they have and throw it in a bucket and let it ferment for at least a few days. You can tell if you have effective bait or not if flies and bees are attracted to it or not.

I think the location of the trap is much more important than the exact composition of the bait. I have a theory that Catocalas generally spend most of their time in the canopy. They will come down low, but it requires unusual conditions (like extreme heat), which is why tapping and other techniques are so hit-or-miss. It also explains why I never got any Catocalas in low-hanging traps. The aromatic compound that they are attracted to in the bait certainly has a high molecular weight, so when it diffuses through the air, it settles toward the ground. So if the bait is already down low, the Catocalas above are never able to smell it.