@loarie do you have to do this or can anyone do this?

I believe we do, also it'd be worth looking into seeing if P. diastictus (P. montanus diastictus) should be split off as well, because if you're splitting flavissimus as its own species I want to say you need to do that as well.

ASW says for flavissimus: Extreme southeastern Louisiana, through southern Mississippi, southern to northeastern Alabama, and southern Georgia south to north-central Florida, USA.

For diastictus: Southern Ohio, and southwestern West Virginia south through Kentucky, central and eastern Tennessee, and Virginia west of the Appalachian Divide to extreme northern Georgia, USA.

For montanus: East of the Appalachian divide from southern New Jersey (with isolated populations in adjacent Pennsylvania) and Maryland through eastern Virginia to east-central Georgia and southern South Carolina, USA.

Unless you've already read this and have still found ambiguous individuals, in which case morphological differences might be best to base off of.