Mayfly exoskeleton

5761  Kingston Ontario.  Live near water… Siding is covered with these for several weeks… Only about 1/4 long.  Don

This is a shed ‘skin’ (exoskeleton) of an immature mayfly. These insects are a vital part of the freshwater food web, but they can become nuisances when they emerge by the gazillions – see http://tinyurl.com/hkxk3y6. Saugstad, retired entomologist; Sinks Grove, WV.