Just for reference, here are pictures of a Callibaetis dun (subimago) and a spinner (imago). Typical of all mayflies, the wings of the dun are translucent, as opposed to the clear (hyaline) wings of the spinner. The spinner also has much longer tails than the dun.
Just for reference, here are pictures of a Callibaetis dun (subimago) and a spinner (imago). Typical of all mayflies, the wings of the dun are translucent, as opposed to the clear (hyaline) wings of the spinner. The spinner also has much longer tails than the dun
But do note that the wings are hyaline and glossy (as opposed to translucent and dun-colored). The mayfly subimago came to be called "dun'' because of its dull (as opposed to glossy) wing and body colors; the color dun is defined as "a nearly neutral slightly brownish dark gray and ranging from red to yellow in hue". The most common mayfly in England is Ephemerella danica, whose subimago is a good example of this coloration, and the term came to be applied, by anglers, to all mayflies in the subimago stage of their lives (also the largest hatches of E. danica occur in May in England, which is how mayflies came to be called mayflies).
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Washington Fly Fishing Forum
1.8M posts
21.3K members
Since 2000
A forum community dedicated to fishers, anglers and enthusiasts in the Washington area. Come join the discussion about safety, gear, boats, tackle, reviews, accessories, classifieds, and more!