Probably one of the many complex hybrids, rather than a species. It will be difficult to determine the cultivar, though, since so many are so similar, and weather conditions can drastically change the appearance of them.

OK - thanks very much.

There is a website called Tinker's Garden Daylily Database that has almost 24,000 pictures. Most are lumped into Hemerocallis fulva.

Look at Hemerocallis Aaaba?

There's a blatant attempt to be first on everyone's lists! : )

I was a bit slow there Tugb - got it now lol, that is the correct spelling.