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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Araneae | Araneidae | Araña Tejedora Naranja | Alpaida veniliae | ||
| 2 | Silver argiope | Araña Plateada De Jardín | Argiope argentata | |||
| 3 | Argiope trifasciata | |||||
| 4 | Filistatidae | Southern Crevice Spider | Araña de los Timbres | Aranha-das-fendas | Kukulcania hibernalis | |
| 5 | Lycosidae | Araña Lobo de Pastizal | Lycosa pampeana | |||
| 6 | Sparassidae | Arañon del Monte | Polybetes pythagoricus | |||
| 7 | Trachelidae | Trachelopachys cingulipes |