NPSpecies

Data Source: Wiegand, 1999; Wiegand, 2001;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Wiegand, 2001: Currently known from other areas in Maryland but not successfully updated at previously reported sites in the survey area from Sandy Hook, Maryland, to District of Columbia line during 1999-2000 field surveys. Wiegand, 1999: A Watch List species in Maryland, documented to occur in the gorge during this survey from Great Falls, Maryland, downriver to the District of Columbia line., Park Species Data Source: Wiegand, 1999; Wiegand, 2001;