In our discussion of aquatic insects, we intend to "boil down" the science of aquatic entomology into manageable and meaningful terms.  So when we use the term, "insectology", we simply mean:

• Fish* eat bugs . . .

• Bugs are available for fish to eat in two places:
  1. Above the water . . . 
     • Above water, the primary insects of interest to fish (& fly fishers) are:
       • Mayfly adults
       • Caddisfly adults
       • Stonefly adults
       • Dragon & Damsel fly adults
       • Other insect adults known as "terrestrials": 
         • Grasshoppers, ants, crickets, beetles, etc
  2. Below the water . . . 
     • Under water, the primary insects of interest to fish (& fly fishers) are:
       • Mayfly "nymphs"
       • Caddisfly "nymphs"
       • Stonefly "nymphs"
       • Dragon & Damsel fly "nymphs"
     • Other underwater food consists of non-insect aquatic forms such as:

       • minnows, sculpin, worms, shrimp, frogs, etc.

    As fly fishers, our knowledge and understanding of these basics of "insectology" goes hand-in-hand with our success in imitating these insects and allowing us to fool fish with flies.

* "Fish", as used here, refers to freshwater fish (as opposed to saltwater fish) that for the most part depend upon aquatic life for their primary food source.

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