This is the only family of burrowing mayflies, besides Ephemeridae, which is abundant in the United States. All the trout fly fishing action comes from the genus Ephoron, because the other two genera reside in warm waters in the South.
» Family Polymitarcyidae (White Flies)
2 genera aren't included.
Read about Ephoron for more details.
1 Streamside Picture of Polymitarcyidae Mayflies:
This nighttime flash photograph shows a bunch of Ephoron
mayflies flying around during the hatch. So many of them fly around with their dun shucks (Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.)
attached that it seems like they molt from the dun to spinner stage in mid-air. Actually they molt on streamside vegetation like other mayflies, but they sometimes take off to mate before they're completely finished.In this picture: Mayfly Genus Ephoron (White Flies).
Recent Discussions of Polymitarcyidae
Potomac White Fly Hatch - in progress 1 Reply »
Last reply on Sep 21, 2008 by GONZO
There's quite a big white fly hatch on the Potomac at least around Harper's Ferry. Does anyone know a good nymph or emerger pattern for the white fly hatch? I plan to hit it early, prior to duns coming off and know there is a good deal of nymphal movement and drift beforehand. Maybe I'll collect a few tonight to see color / size / behavior. Any thoughts are appreciated.ReplyFly choice during an Ephoron hatch 11 Replies »
Last reply on Sep 25, 2007 by Gene
Hey folks, what would you recommend as an imitation of these guys? They're hatching furiously in the Huron River in/near Ann Arbor, MI (smallmouth are leaping out of the water to eat them). How about a Light Cahill or White Wulff? Both have been major producers for me on other streams with white mayfly hatches in summer (e.g., Rifle River). If anyone has a particular recipe that works for them, I'd like to know. Thanks!ReplyEphoron Leukon nymph photographs 11 Replies »
Last reply on Aug 14, 2007 by Gene
I need some help here. I have been looking all over the web for someone who may have taken some Ephoron Leukon nymph underwater (or out of water) photos.I saw the description here at "Troutnut.com" and advice that a smaller Brown Drake (Ephemera) nymph would be a good natural to use as a tying model but I really want to see the real thing. Does any body have any of these pics or can anyone definitively tell me where to look? Reply
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