May Flies are one of the most important aquatic insects on the Arkansas River. They are easy to identify, while at rest the wings are upright like a sail boat sail and they have slender bodies and long tails. There are many different species of mayflies , well over 500 exist in North America. Mayflies have a one year life cycle divided into four stages, egg, nymph, dun, and spinner. The egg will rest on the bottom for about one and a half months. After hatching, it is now in the nymph stage and will live and grow under water for about ten and one half months. The dun and spinner (adult dry fly) stage lasts twenty four to seventy two hours depending on species. This is when the mayfly leaves the water to mate, lay eggs, and die. At this point the process starts all over . Fly patterns for mayflies in all stages are many in number. Here on the Arkansas River if you carry a Blue wing , Adams, and Red Quill Pattern in three stages nymph, emerger, and dry you will do well. Here are some of the patterns of flies we use. Stop by let's talk bugs.