This beetle is not the same individual as the
pupa I photographed. That beetle's elytra did not fill out normally, leaving a most unphotogenic specimen. Unlike the first one whose pupal shell I accidentally breeched, this beetle clawed its own way out of its pupal shell. The abdomen will probably recede some in the next few days.
There is no mistaking the species, Valgus canaliculatus or the Channeled Valgus. The longitudinal ridges/groove on the pronotum, the color, the markings, and the sharply pointed teeth on the protibiae are diagnostic for species. The poorly-eclosed individual is also V. canaliculatus. Because I found both V. canaliculatus and V. seti*collis adults in the same gallery-riddled oak log, I knew I had to wait and see what these adults looked like before ascribing them to species. Of course it's possible the third to eclose could be the other species and I will have to unlink things and assign them to different pages :-)
I'm calling this one a male because the female, which I've never seen, is said to have a prominent pygidial spine. Females are also said to not visit flowers and are therefore rarely seen. Since the
solitary V. canaliculatus adult I first found in the log had no spine I assumed it to be male whereas the pair of V. set*collis in the same log stood some chance of being male and female and were more likely to have the laid eggs the larvae hatched from (or so I thought :-).