Not sure this is U. lugens. There is a distinct scallop patterned margin to the forewings and a short mid line at each forewing tip which I can't see in our other U. lugens specimens.
The shape and posture look good to me for Nolinae, but I think the shapes of the zigzag transverse lines, and the absence of the smoothly curved dark central band, look wrong for Uraba lugens.
Could it be an extremely plain Dysbatus specimen? I have seen some without the usual transverse wiggly lines, and the line towards the fw tip the Ian points to would satisfy Dysbatus. John, were the originals as grey as these photos rather than a little brown? Do you have an upperside photo of the male?
These photos are the dorsal and ventral side of the same moth. It has feather antennae and so I assume it's a male. My understanding is that a female U. lugens is quite a bit longer than the male (No female was sighted on the night). I really don't know what it is but thought that a male U. lugens was a possibility.
I say not N. desmotes because of the scallop patterned margin to the forewings and a short mid line at each forewing tip which no images of that species on the ALA show.
Nola males generally have finely bipectinate or hairy antennae. This branches on this one are much stronger. I think they also look unipectinate, which matches Dysbatus. But that would still be a speculative identification.