| geothlypis formosa | | Costa Rica: Guanacaste, San Gerardo | | 294513838 |
| geothlypis formosa | | Costa Rica: Guanacaste, Pitilla | | 294513836 |
| geothlypis formosa | | Costa Rica: Guanacaste, Santa Maria | | 294513834 |
| geothlypis formosa | | Costa Rica: Guanacaste, Rio Negro | | 294513832 |