Mayflies; Insects--Geographical distribution
Analyses of collections made during the years 1961-1964 reveal that Ephemera simulans is widely distributed in the lake regions of Minnesota and Wisconsin. The period of maximum emergence in central Minnesota and northern Wisconsin occurs during the last three weeks in June, the peak in extreme northern Minnesota about two weeks later.
Fremling, C. R.,
Kloek, G. P.
Distribution and Emergence Patterns of Mayflies Ephemera simulans (Ephemeroptera: Ephemeridae).
Journal of the Minnesota Academy of Science, Vol. 35 No.2, 102-103.
Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol35/iss2/12