Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
35168
| MD | | Blue Ridge, ridge and valley, Great Valley | 1976 |
02070009
| Monocacy | established |
35167
| MD | | western slope of the Piedmont (Potomac drainage) | 1976 |
02070000
| Potomac | established |
547942
| MD | Charles | Zekiak Swamp Run | 1998 |
02070011
| Lower Potomac | established |
547944
| MD | Frederick | Monocacy River, Thurmont, Md. | 1998 |
02070009
| Monocacy | established |
268190
| MD | Frederick | Western Maryland, drainages in the Piedmont and Blue Ridge regions | 1981 |
02070009
| Monocacy | established |
1335941
| PA | Adams | Marsh Creek, South of Gettysburg | 1940 |
02070009
| Monocacy | failed |
547959
| PA | Franklin | Back Creek, Hagerstown | 1997 |
02070004
| Conococheague-Opequon | established |
45498
| VA | | Potomac (HUC6) non-specific | 1895 |
02070000
| Potomac | established |
269406
| VA | | Potomac (HUC6) non-specific | 1986 |
02070000
| Potomac | established |
45489
| VA | | Shenandoah River | 1893 |
02070007
| Shenandoah | collected |
153179
| VA | Fairfax | Potomac River near DC | 1993 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
153178
| VA | King George/Westmoreland | lower Potomac drainage | 1993 |
02070011
| Lower Potomac | established |
153180
| VA | Loudoun | Potomac River | 1993 |
02070008
| Middle Potomac-Catoctin | established |
45486
| VA | Rockingham | North River tributary in Rockingham Co near Hinton; Shenandoah drainage | 1994 |
02070005
| South Fork Shenandoah | collected |
547960
| VA | Stafford | Patomac (Potomac) Cr., Fredericksburg | 1997 |
02070011
| Lower Potomac | established |
280431
| VA | Stafford | Potomac Creek, northernmost channel (marshy run), at SR 608 (Brooke Road), 5.0 air miles NE center of Fredericksburg. | 2010 |
02070011
| Lower Potomac | established |