site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
---|---|---|---|---|---|---|---|---|---|
A | Grandview, Iowa, USA | 1425 map | 1915-1917 | type locality | freshwater | clear pond with sandy bottom near Grandview. | Higley R (1918): 12-17, 30 | ||
B | Fairport, Iowa, USA | 1423 map | Jul 1917 | freshwater | large numbers in early July. Almost complete disappearance by the first of August. | Higley R (1918): 12-17, 35 |