| 1 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico | | |
| Leptotes theonus | |
| Cassius Blue | |
| 2 | Blue and John Crow Mountains National Park | 🇯🇲 Jamaica | | |
| Cassius Blue | |
| 3 | Big Bend National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 4 | Picos de Europa National Park | 🇪🇸 Spain | | |
| Lang's Short-Tailed Blue | |
| 5 | Saguaro National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 6 | Sierra Nevada National Park | 🇪🇸 Spain | | |
| Lang's Short-Tailed Blue | |
| 7 | Everglades National Park | 🇺🇸 United States | | |
| Cassius Blue | |
| 8 | Joshua Tree National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 9 | Guadalupe Mountains National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 10 | Channel Islands National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 11 | Grand Canyon National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 12 | Doñana National Park | 🇪🇸 Spain | | |
| Lang's Short-Tailed Blue | |
| 13 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | | |
| Marine Blue | |
| Cassius Blue | |
| Leptotes theonus | |
| 14 | Sierra de Guadarrama National Park | 🇪🇸 Spain | | |
| Lang's Short-Tailed Blue | |
| 15 | Iguazú National Park | 🇦🇷 Argentina | | |
| Cassius Blue | |
| 16 | Death Valley National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 17 | Big Cypress National Preserve | 🇺🇸 United States | | |
| Cassius Blue | |
| 18 | Monfragüe National Park | 🇪🇸 Spain | | |
| Lang's Short-Tailed Blue | |
| 19 | Iguaçu National Park | 🇧🇷 Brazil | | |
| Cassius Blue | |
| 20 | Bahía de Loreto National Park | 🇲🇽 Mexico | | |
| Marine Blue | |
| 21 | Pyrénées National Park | 🇫🇷 France | | |
| Lang's Short-Tailed Blue | |
| 22 | Cévennes National Park | 🇫🇷 France | | |
| Lang's Short-Tailed Blue | |
| 23 | Calakmul Biosphere Reserve | 🇲🇽 Mexico | | |
| Leptotes theonus | |
| 24 | Doi Inthanon National Park | 🇹🇭 Thailand | | |
| Zebra Blue | |
| 25 | Zion National Park | 🇺🇸 United States | | |
| Marine Blue | |
| 26 | Lamington National Park | 🇦🇺 Australia | | |
| Zebra Blue | |
| 27 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | | |
| Marine Blue | |
| 28 | Merritt Island National Wildlife Refuge | 🇺🇸 United States | | |
| Cassius Blue | |
| 29 | Springbrook National Park | 🇦🇺 Australia | | |
| Zebra Blue | |
| 30 | Royal National Park | 🇦🇺 Australia | | |
| Zebra Blue | |
| 31 | Kaeng Krachan National Park | 🇹🇭 Thailand | | |
| Zebra Blue | |
| 32 | Blue Mountains National Park | 🇦🇺 Australia | | |
| Zebra Blue | |