Excerpt: The following records result from data accumulated from the years 1948-63. A total of more than 175 field samples, usually from different locations, have been taken from 27 counties in the upper and lower peninsulas of Michigan. The total of 2,199 specimens includes 241 larvae, 452 adult males, and 1506 adult females.
Obrecht, Carl B.
"New Distribution Records of Michigan Mosquitoes, 1948-1963,"
The Great Lakes Entomologist: Vol. 1
, Article 2.
Available at: http://scholar.valpo.edu/tgle/vol1/iss5/2