| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1751371
| MD | Anne Arundel | [No locality description provided] | 2024 |
02060004
| Severn | |
|
1751634
| MD | Anne Arundel | [No locality description provided] | 2024 |
02060004
| Severn | |
|
1751861
| MD | Anne Arundel | [No locality description provided] | 2024 |
02060004
| Severn | |
|
1751953
| MD | Baltimore | [No locality description provided] | 2024 |
02060003
| Gunpowder-Patapsco | |
|
1746934
| MD | Carroll | [No locality description provided] | 2021 |
02060003
| Gunpowder-Patapsco | |
|
1670540
| MD | Carroll | private pond at Carroll Warehime Rd | 2021 |
02060003
| Gunpowder-Patapsco | established |
|
1728545
| MD | Frederick | [No locality description provided] | 2023 |
02070009
| Monocacy | |
|
1891086
| MD | Frederick | [No locality description provided] | 2025 |
02070009
| Monocacy | |
|
1889293
| MD | Harford | [No locality description provided; coordinates obscured by collector] | 2025 |
02050306
| Lower Susquehanna | |
|
1751448
| MD | Harford | [No locality description provided] | 2024 |
02060003
| Gunpowder-Patapsco | |
|
1673255
| MD | Montgomery | [No locality description provided] | 2019 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1890282
| MD | Montgomery | [No locality description provided] | 2019 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1679461
| MD | Montgomery | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1745074
| MD | Montgomery | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1745570
| MD | Montgomery | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1680061
| MD | Montgomery | [No locality description provided] | 2021 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1701601
| MD | Montgomery | [No locality description provided] | 2022 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
|
1889590
| MD | Montgomery | [No locality description provided] | 2025 |
02070008
| Middle Potomac-Catoctin | |
|
1873971
| MD | Montgomery | Paint Branch, MD | 2019 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
|
1447470
| MD | Montgomery | Paint Branch, N of E Randolph Rd, in Fairview Estates | 2017 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |