Yes, its definitely schiedeana. That is one columnea that is easy to ID. I know of no other columnea that comes even close, not even schiedeana hybrids, of which there are quite a few. It has been in cultivation for a long time, and will grow into a very large plant, but can be kept smaller with pruning. It flowers all year long, more or less, and is one of the easiest to grow. It is wide spread at higher elevations in Mexico, so can handle cold dips down to 32, if they are for a short time in the early morning. There are three or four different collections in cultivation. I am pretty sure that you have the common Mexican form. There is a large grower from Costa Rica, that has wonderfully spotted flowers, but is a coarser grower, plus one from Mexico that has all yellow flowers, and somewhere, hopefully still in cultivation, is one that has red backed leaves. When the GRF went on a collecting trip to Mexico they found one that had all red leaves. I saw a photo of it--it was outstanding; but, sadly, it never made it into cultivation (that's the one I really want!). I like schiedeana a lot, and have been growing it for many years. When I grow it outdoors, the hummingbirds will set berries for me, which are white. Jon

I've googled undulata erromena, and the pictures seem to be a match. However the descriptions all seem to say it has shiny leaves, whereas mine definitely doesn't. Its leaves are a dull flat finish. Would growing conditions affect the gloss factor? I have a Royal Standard nearby and it glows compared to this one. Thanks for your opinions.

Looks like one of the Buprestid beetles, to me, an adult. They're tree borers. Attached is an image from Bug Guide. Looks similiar to yours, though there are hundreds of varieties. Here is a link that might be useful:

It looks like Albizia julibrissin (Silktree Mimosa). There is another with a green/white flower. Not sure but that one may be Albizia lebbeck. Hazel.