]> NEBC barcode-00549222 United States of America Massachusetts Boston Basin Ecoregion: Mystic River Watershed. Middlesex Fells Reservation, east side of Bellevue Pond, GPS 42 25.921N, 71 6.426W Hesperis matronalis Linnaeus Linnaeus 2015-04-17 08:41:41 B. T. Hamlin