have just been looking at Lockhartia and cannot see differences between lunifera and oerstedii. Same growth, same flower, same distribution. Just wonder what I have growing at home, was sold to me as lunifera. I posted some pictures here.
I'm trying to work out the same, did you ever differentiate the two. I have oerstedii and other than seeing this may tolerate cooler temperatures than lunifera it seems like you only need one of them in your collection.
L. lunifera has narrower lateral lobes to the lip (they are more or less the same width all along their length) whereas L. oerstedii has lateral lobes that are much wider towards the tip.