Here the adult beetle has attained its full color. The abdomen has also shrunken somewhat. It will be ready to fly when the abdomen has receded to the appropriate size.

Supposing this is a longhorn with underwhelming antennae, and thumbing through the plates in Yanega's Field Guide to Northeastern Longhorned Beetles, it appears to be reasonably close in size, habitat and appearance to A*semum stri*atum. The squared-off scutellum also resembles that of this species, the name of which I have hidden from this site's search function for now by inserting asterisks.