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Observation notes: Pleasant mostly-sunny midday in Yellowstone National Park near the Calcite Springs Overlook. The butterfly was seen not-long dead (the abdomen is clearly damaged) on the edge of the road with its underside up while watching a cinnamon bear cub a short distance off the road and down the hill (which some idiot then decided to go visit, distracting everyone from anything else).
Verified by: J_Martineau
Verified date: July 11, 2021
Coordinator notes: Would need to see upper side of wings to be 100% sure, but pretty sure it's E. persius.