Mayfly Genus Ephemera
1 species (Ephemera traverae)
isn't included.
This genus of large mayflies boasts three species of great importance. Ephemera simulans and Ephemera guttulata, the Brown Drakes and Green Drakes, are both legendary for short-lived periods of blizzard-like hatches. The Yellow Drakes, Ephemera varia, have a slow and steady emergence period, providing consistent low-key action for several midsummer weeks.
Ephemera blanda is a very localized species and unimportant to most anglers. Ephemera compar, sometimes mentioned in older books as a minor Western hatch, is now considered to be extinct.
Several important characteristics vary between the three important species. Read about each one for details.Nymph BiologyMost Ephemera species burrow into rougher substrate than Hexagenia nymphs do. They inhabit sand and fine gravel more frequently than firm silt, although they are found in those environments too.
Pictures of 21 Mayfly Specimens in the Genus Ephemera:
3 Streamside Pictures of Ephemera Mayflies:
I didn't manage to collect a nymph, but here's the hollow
shuck (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.) left over from an emerged dun, showing the basic pattern of the nymph.
In this picture: Mayfly Species Ephemera guttulata (Green Drake).Date AddedJun 4, 2007
CameraPENTAX Optio WPi
This is the skin a brown drake dun shed when it molted into a spinner. Many of these were on the surface one afternoon, having been blown in after the flies molted on overhanging alders. They were our most noticeable sign of an intense brown drake hatch the previous night and a spinner fall to come.
In this picture: Mayfly Species Ephemera simulans (Brown Drake).2 Underwater Pictures of Ephemera Mayflies:
Recent Discussions of Ephemera
Brown Drake? 20 Replies »Last reply on Jun 29, 2011 by
TNEALCame across a mayfly on the Paint River by Crystal Falls, Michigan on June 17th. Is it a brown drake?
Thanks.
ReplyEmergence period of green drakes 5 Replies »Emergence periods for green drakes usually run for 7-10 days in most streams. However, there are streams in the east where emergence periods are prolonged by some of the nymphs being parasitized by Nanocladius and Epoicocladius midge larvae. In these streams, emergence may be prolonged to 21 days. Unparasitized nymphs emerge before parasitized nymphs, with each group showing separate peaks of emergence about a week apart. This is based upon my own research on green drake emergence in streams with these midge species.
My question here is this: does anybody know of streams that have this type of prolonged emergence (2-3 weeks) in NY, PA, MD, or WV?
ReplyGreen Drake Hatch Frustrations 7 Replies »Last reply on Jun 12, 2007 by
GONZOWe were fortunate this past weekend to be on Pine Creek during the Green Drake hatch. The spinner fall was incredible. A question I have is why do we miss so many strikes and yet, using the same techniques, the ones we do catch and release practically hook themselves. We were getting strikes on Green Drake Duns and Cripples and Spinners.
One individual described it to us that after observing the trout underwater during a Green Drake hatch, many of the strikes pull a small part of the fly (wing, leg) underwater and they swirl and swallow it there. If that is true, then I can rationalize missing more than 18 fish this weekend. If anyone has observed this please post your observations. Normally we do not have such a great contrast in miss to hookup ratio.
ReplyNix compar 8 Replies »Posted by
GONZO on Sep 18, 2006
Prior to Hatches or Hatches II, Ernie Schwiebert included E. compar in Nymphs and discussed their activity on the Frying Pan in CO. Unfortunately, the species has been listed as "recently extinct" for several years.
ReplyBrown Drake - emergence cycle??? 5 Replies »Well the Brown Drakes are happening up in Bayfield, Douglas and Sawyer County streams now.
I was talking with the Queen of the Brown Drakes - Chloe Manz the other day and she was insisting that the nymphs only emerge in the late evening. I was countering that I was under the impression that they emerge in the early morning hours and sometimes during the mid day hours.
Any acurate info???
Observation on my part has subimagos around during the daylight and taking refuge in the riprian foliage until a return to the water in the very late evening (under the right conditions) as imagos for a mating flight and egg laying.
I would be interested to know if anyone has had any success fishing the emerging nymphs. I have ties up some nice, big soft hackles and am itching to give em a whirl.
By the way....there is a masking hatch up near my home stream of Sulphurs that takes a trump card over the bigger Brown Drake most evenings...last night I mistakenly switched to a Brown Drake spinner after very successfully fishing a Sulphur dun for an hour.
I could hear the fish change the sucking noises as the evening progressed into darkness and spent a unfruitfull 1/2 hour steadily working a couple of very nice fish with the brown drake spent pattern before turning my attention to the evidence...I put the headlamp on the surface and saw that the Sulphur spinners were much more predominant.
I then switched to a more appropriate spent pattern and got a bit of redemption!
Glorious evening none the less and lesson well learned!
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