(1) Isoperla acula,

El Dorado Co., CA, Deadman Creek (DC), Church Mine Rd. xing, 2.45 mi (3.9 km) SE El Dorado, (10- & 16)- V-2009 (♂ ♀ reared), 10-V-2009 (♂ ♀ field collected-teneral) .