Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
33009
| IA | Benton | Cedar River | 1987 |
07080205
| Middle Cedar | unknown |
587381
| IA | Black Hawk | [No locality description provided by MARIS] | 2004 |
07080205
| Middle Cedar | unknown |
33008
| IA | Black Hawk | Cedar River | 1987 |
07080205
| Middle Cedar | unknown |
33007
| IA | Butler | Shell Rock River | 1987 |
07080202
| Shell Rock | unknown |
587382
| IA | Cedar | [No locality description provided by MARIS] | 1998 |
07080206
| Lower Cedar | unknown |
587383
| IA | Davis | [No locality description provided by MARIS] | 2003 |
07100009
| Lower Des Moines | unknown |
33011
| IA | Delaware | Delaware County | 1987 |
07000000
| Upper Mississippi Region | unknown |
33006
| IA | Floyd | Shell Rock River | 1987 |
07080202
| Shell Rock | unknown |
546477
| IA | Fremont | Missouri River, Nebraska City Power Station | 1977 |
10240001
| Keg-Weeping Water | unknown |
546484
| IA | Fremont | Missouri River, RM 556.2 | 1993 |
10240001
| Keg-Weeping Water | unknown |
33002
| IA | Fremont | near Payne | 1987 |
10240001
| Keg-Weeping Water | unknown |
33003
| IA | Harrison | Wilson State Recreational Area | 1987 |
10230006
| Big Papillion-Mosquito | unknown |
1421549
| IA | Johnson | Pond in City Park, Iowa City | 2017 |
07080209
| Lower Iowa | unknown |
1691726
| IA | Lee | Mississippi River, Iowa | 2018 |
07080104
| Flint-Henderson | unknown |
1691727
| IA | Lee | Mississippi River, Iowa | 2018 |
07080104
| Flint-Henderson | unknown |
1691728
| IA | Lee | Mississippi River, Iowa | 2018 |
07080104
| Flint-Henderson | unknown |
1691729
| IA | Lee | Mississippi River, Iowa | 2018 |
07080104
| Flint-Henderson | unknown |
1691730
| IA | Lee | Mississippi River, Iowa | 2018 |
07080104
| Flint-Henderson | unknown |
33010
| IA | Linn | Cedar River | 1987 |
07080206
| Lower Cedar | unknown |
1421548
| IA | Linn | Pond in Mt. Vernon Nature Park | 2017 |
07080206
| Lower Cedar | unknown |
33001
| IA | Mills | Mills County | 1987 |
10240000
| Missouri-Nishnabotna | unknown |
587384
| IA | Mitchell | [No locality description provided by MARIS] | 2002 |
07080201
| Upper Cedar | unknown |
1467976
| IA | Polk | lake near Johnston Commons, IA | 2018 |
07100004
| Middle Des Moines | unknown |
33004
| IA | Washington | confluence of English and Iowa Rivers | 1987 |
07080209
| Lower Iowa | unknown |
33005
| IA | Worth | Shell Rock River | 1987 |
07080202
| Shell Rock | unknown |