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Project Noah Nature School
Are designed to swim upside down and as a result are darker on the bottom than they are on the top; this is the opposite of most aquatic species.
Along the shores of a mesotrophic lake in the Laurentian Mixed Forest ecoregion of Minnesota.
Identified to family (Notonectidae); taken through a microscope.
Close, but the barred pattern on the wing suggests its a water boatman, not a backswimmer. The two are often confused for one another.
Spotted on Apr 10, 2012
Submitted on Apr 18, 2012
