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D. funeralis/maculalis differentiation

Hello everyone,
I admin a project on iNaturalist named "Moths of West Virginia, U.S.A."

While researching how to differentiate D. funeralis from maculalis, I came across the list of information required by bugguide here:

I was wondering if the abdominal patch versus stripes are sufficient on their own to differentiate? Or must one ALSO see evidence of sex AND of size? Are all three criteria strictly necessary in my region to reach an ID?

Most submissions on iNaturalist will have none of the above, only a dorsal photo. In which case, would anyone like to suggest what I could say by way of a BRIEF comment as to what would be needed for identification to be confirmed for future submissions, please?

I can't even imagine stepping into this amazing world of Leps, with the huge learning curve it has involved, without the help of the wonderful volunteers here on bugguide. You've added delight to a few otherwise difficult years!

Sandy in North Central West Virginia