Undescribed Schizura "patagonia"? See comment here (though from 2014): https://bugguide.net/node/view/888010
Somewhat similar to Ponometia libedis. http://mothphotographersgroup.msstate.edu/species.php?hodges=9119&state=AZ
Attracted with MV + UV light setup. Location habitat/ecosystem briefly described here: https://outdoornebraska.gov/wp-content/uploads/2015/09/NLP_WildcatHills.pdf