I really like this view through the microscope of a water boatman's mouth and metallic-looking compound eyes (Compound eye: The eyes of many arthropods, including insects and crustaceans, are composed of anywhere from 12 to 1,000 facets called ommatidia. These are called compound eyes.). 
The compound eyes of a male Isonychia bicolor mayfly spinner.
Sigara Water Boatman Adult from Fall Creek in New York
Troutnut.com is a collection of pictures and information about fly fishing. Fly fishermen, fly tiers, and trout enthusiasts of all stripes can learn more about life beneath the surface of trout streams, as well as how to better imitate aquatic insects with artificial flies to catch trout. There are aquatic insect pictures, underwater pictures, landscape pictures, and a comprehensive reference to the common names of trout stream insects.
