Took me most of the day so far just to wade through the skippers, but I will be posting our corrected version of the MD checklist as soon as I plow through the rest of the butterfly families (where there are fewer nomenclatural changes). And certainly in time for the 2020 field season!
We had relatively few taxonomic changes here in the mid-Atlantic, but there are many more in other parts of the US, especially where Central and South American taxa mingle with more northerly fauna.
The other thing you’ll notice from the Pelham catalog is that the taxonomic arrangement of families is much different than we’re used to, with Hesperiidae (skippers) first in taxonomic order before the true butterflies (they used to be dead last). That will take some getting used to!