Minnesota: Hennepin: AMNH 4759-60, Fort Snelling. Lesueur: KU 46742-43, Waterville, Lake Tetonka. Winona: USNM 59263-66, Homer.
Missouri: Carter: UMMZ 70737, "near" Van Buren. Chariton: UI 17509, Triplett. Franklin: USNM 55689. Gasconade: UMMZ 95900, Bourbeuse Creek, 8 mi. S Owensville. Jefferson: USNM 95405, Glaize Creek. Lewis: USNM 59279-80, Canton. Miller: UMMZ 91929, Barren Fork Tavern Creek, 5 mi. NW Iowna. Newton: UMMZ 82822, Shoal Creek, 12 mi. W Momit. Phelps: UMMZ 91930, Bourbeuse River, 10 mi. N St. James. Reynolds: CNHM 35392, Black River at Warner Bay Spring; USNM 55688. Ripley: UMMZ 90435. Shannon: INHS 6223, Alley Spring State Park. St. Charles: USNM 93089-94, Dardenne Creek, St. Peters. St. Louis: USNM 55685-87, Mississippi River at St. Louis. Stone: USNM 55684. Washington: USNM 55690. Wayne: UI 16554, Sam A. Baker State Park; UMMZ 95879, St. Francis River at Lodi. County unknown (Wayne or Butler): UMMZ 83264, Clark National Forest, St. Francis River.
Montana: Big Horn: USNM 54421, Crow Agency. Roosevelt: USNM 58, Fort Union (locality reads "Yellowstone, Fort Union"; probably the Yellowstone River near Fort Union). Wheatland: UMMZ 92005, Musselshell River near Shawmut. Yellowstone: USNM 14535, Custer.
Oklahoma: Alfalfa: OU 9316, 2 mi. S Cherokee. Cleveland: OU 22973, Norman. Delaware: UMMZ 81476, Spavinaw. LeFlore: OU 16802, 1.5 mi. E Zoe. Osage: UMMZ 89628, Big Hominy Creek. Pottawatomie: OU 25175, 5 mi. SW Shawnee. Rogers: OU 7317, Verdigris River, 5 mi. W Claremore; UMMZ 81473-74, near Garnett, Tulsa County; UMMZ 81475, 4 mi. NE Inola. Sequoyah: OU 9008, 2 mi. NE Gore; TU 13885, Little Vian Creek, 1 mi. E Vian. Texas: OU 5005, 5 mi. SE Guymon. Tulsa: TU 17061, Bird Creek "near" Skiatook, Osage County. Woods: CHNM 11809, Waynoka; OU 9432, 2.5 mi. W Waynoka; OU 9579, 9581-82, 1 mi. S Waynoka.
Texas: Hansford: TTC 719, 10 mi. S, 2 mi. W Gruver. Hutchinson: TTC 1090, Carson Creek, Turkey Track Ranch.
Wyoming: Goshen: USNM 7648, Fort Laramie. Weston: UMMZ 78080, Beaver Creek.
No Data: CNHM 21687-88, 22925. SM 142 (locality of Waco, McLennan County, Texas, believed in error). USNM 7649, 11625, 19622-23, 36412 (Illinois River).
Records in the literature.—Arkansas: Benton: (Dowling, 1957:37). Chicot: Lake Chicot. Clark: Terre Noir Creek, 13 mi. W Arkadelphia. Garland: Ouachita River, Mountain Pine (Conant and Goin, 1948:7). Hempstead: Jefferson: (Dowling, loc. cit.). Lawrence: Black Rock (Dellinger and Black, 1938:46). Madison: Scott: St. Francis: (Dowling, loc. cit.). Washington: near Greenland (Dellinger and Black, loc. cit.).
Colorado: Boulder: Boulder Creek, E Boulder; Boulder Creek, 6 mi. S and 1 mi. E Longmont. Larimer: Cache la Poudre River. Logan: 8 mi. NE Sterling. Morgan: Platte River "near" Fort Morgan. Otero: Purgatoire River at Higbee. Prowers: Arkansas River at Lamar. Weld: Poudre River "near" Greeley; Evans. Yuma: Bonny Dam, Republican River (Maslin, 1959:24-25).
Iowa: Dickinson: Little Sioux River, Okoboji Twp. (Blanchard, 1923:24). Story: Skunk River, 5 mi. NNE Ames (Conant and Goin, 1948:9).