Otherwise, you can print it yourself, double-sided, and fold it into a trifold to carry it into the field.
I’ve greatly expanded the Historical/Accidental category based on the most recent sightings data and our own field work over the past couple of summers. But I look forward to moving them back into active categories (I’ve left room!) as we learn more about MD butterfly distribution this summer.
Grateful thanks to contributors, proofers, and reviewers Dick Smith, Tom Stock, Beth Johnson, Matt Orsie, Fran Pope and Rick Cheicante, and to the increasingly rich sightings data at the Maryland Biodiversity Project.
Download the revised checklist: