Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
879856
| IA | Johnson | Iowa River [at confluence with Iowa River due E of Riverside] | 2015 |
07080209
| Lower Iowa | established |
879852
| IA | Johnson | Iowa River at the English River | 2015 |
07080209
| Lower Iowa | established |
1334706
| IA | Louisa | Iowa River at Toolesboro, 1.9 river km upstream (southwest) of the confluence of the Mississippi and the Iowa rivers | 2014 |
07080209
| Lower Iowa | established |
1334765
| IA | Louisa | Iowa River at Toolesboro, 1.9 river km upstream (southwest) of the confluence of the Mississippi and the Iowa rivers | 2015 |
07080209
| Lower Iowa | established |
879857
| IA | Washington | English River [near confluence with Iowa River E of Riverside] | 2015 |
07080209
| Lower Iowa | established |