I asked for an identification for this one on the Mothing in Massachusetts Facebook group, and who should answer, but coolbugs
! Her answer was, "It's either yellow-fringed Dolichomia (Dolichomia olinalis
*) or the one that looks just like [it]." When I dug a little deeper on that, I realized that she meant that this moth could be the very similar looking moth by the common name clover hayworm. Also, I discovered that Bugguide was calling the "yellow-fringed Dolichomia" by a new scientific name Hypsopygia olinalis
**. Coolbugs, an experienced insect identifier who has memorized hundreds of scientific names, replied "blerg." I feel that.
For what it's worth, the subtle characters of the moth's coloring made another commenter suggest that olinalis
was the proper identification. Both species are found in our area, but the larva of the hayworm feeds on dried vegetation (makes sense) while the "Dolichomia" larva feeds on oak.* The light, long one
** High-assed light one