We saw these on a store near our home. Some common names for fishflys are mayfly, dayfly, shadfly, green bay fly, lake fly, midgee, and Canadian Soldiers. Around here they're called fishflys. They lay their eggs on the surface of lakes and streams and sink to the bottom. All the fishflys mature at once and for a day or two in the spring they are then found on the sides of buildings, windows and other places. Fishflys live for a day or less. In Norwegian, fishflys are called dognflue. S. says that they are cool to look at but she does NOT like them landing on her. Next time that we update S.'s cousins J. and I. willl be here from the great state of Rhode Island and helping us update the blog. For more information on fishflys, see here.