NPSpecies

Data Source: Maxon, 1935;Wiegand, 2001; Wiegand, 1995; Wiegand, 1999;

Data Source: Helen Hamilton

Data Source: Helen Hamilton

Park Species Detail: Maxon, 1935: Rare. Wiegand, 2001: Documented from Maryland during this survey from Sandy Hook, Maryland, to District of Columbia line. Wiegand, 1999: Currently known from other areas in Maryland but not successfully updated at previously reported sites in the gorge during this survey from Great Falls, Maryland, downriver to the District of Columbia line. Wiegand, 1995: Reported during this survey from Sandy Hook west to Cumberland., Park Species Data Source: Maxon, 1935;Wiegand, 2001;Wiegand, 1995;Wiegand, 1999;