I realize this move may be controversial due to the considerable extension of reported range. See note to Aaron (below) for explanation. At least this way I might expedite feedback. If DNA analysis or genitalic dissection is needed, the voucher is ready and not too old (like me).

Aaron,
I appreciate your help, but I am skeptical of coronata complex/tertialis placement (as I know I must be of quebecensis placement due to range considerations). Doing a side-by-side comparison of my image with the plates at MPG I note especially that in tertialis the white patches are more distinct, the dark shading less diffuse/even, and the pm line tends to thicken and curve and be less finely/distinctly serrate near the costa. Also tertialis has a darker outer forewing margin whereas quebecensis has an overall paler outer and costal forewing margins. My image is clearly a better visual match with quebecensis. Can we somehow give this further scrutiny? Thank you again!

Your "... less finely/distinctly serrate near the costa..." comment appears to be spot on. This feature is used to separate the two species in the Munroe (1976) key.

Thanks, Steve. I wasn't aware of that. Cooked it up from scratch!

I agree with your analysis. I hadn't subscribed to the image, so sorry it took a while for me to stumble upon your comment.

Aaron,
Thanks for your reply. I figured my comment might have gotten overlooked somehow. Hopefully we can get further feedback.