I wish I could find out more information online about the life cycles of freshwater insects and crusteans. I too believe that knowing their life cycles and their habits helps to know where the fish are.

If you want to locate some wolves find the buffalo! You want to find some strippers then find the schools of shad that they feed on.

Want to find some smallmouth bass then look for areas where there are lots of crayfish molting. I found that there are a lot of different species of crayfish. Each may live in a different type environment in a lake. I know that is a small 3 acres lake in Southern IN the crayfish can be found out in the middle of the lake scurrying around the lake bottom in July. I have seen them myself while scuba diving in a lake like this. They leave trails of smoke like muddy water as they scurry away. Visibilty was poor so I could only see about 2ft from my face mask. So it's a little spooky to be swimming along with your face only 2 ft away from the bottom and to see something scoot away leaving a cloud of muddy water behind. They are so fast that it's hard to see them. But the clue that they were there is unmistakable.

Regards,

Moose1am