First personal record of each species by Guillermo Costa (lifers)
Species by Date 1 to 3 of 3
| Group | Species | Place | Date | Detail | |
 | Arácnidos | (Rhipicephalus sanguineus) | Caballito, Ciudad Autónoma de Buenos Aires, Argentina | 10/15/2011 |  |
| | Aves | Yellow-chevroned Parakeet (Brotogeris chiriri) | Belén de Escobar, Buenos Aires, Argentina | 09/25/2011 | |
| | Insectos | (Ceratitis capitata) | Mercedes, Buenos Aires, Argentina | 02/14/2011 | |
Species by Date 1 to 3 of 3