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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

I like this one. Glacial river, taiga, tundra, and the perpetual ice cover of a massive high ridge dozens of miles away in the Wrangell Mountains. From the Copper River in Alaska

Stream photos

Featured on the forum
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Limnephilidae (Giant Sedges) Caddisfly LarvaLimnephilidae (Giant Sedges) Caddisfly Larva
Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
10 Recently Added Photos
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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  2. Fly Hatch Talk > Discuss Ephemeroptera

  1. Troutnut Forum
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  2. Fly Hatch Talk > Discuss Ephemeroptera

You can create new topics in this section from each hatch's page in the insect section.
Topic
Replies
Last Reply
Possible ID
Apr 11, 2021 by Sreyadig in species Apobaetis futilis
1
Apr 11, 2021
by Taxon
Yea...
Oct 23, 2020 by Imaxfli in species Ephoron leukon
0
Trico emergers Featured Topic
Jul 14, 2018 by Bwoklink in genus Tricorythodes
6
Sep 11, 2020
by Martinlf
PMD Spinner - Egg sack color? [Page: 1, 2]
Jan 26, 2010 by Wbranch in species Ephemerella excrucians
20
Aug 18, 2020
by Troutnut
Trico Tips [Page: 1, 2, 3] Featured Topic
Jul 21, 2007 by Martinlf in genus Tricorythodes
50
Jul 31, 2020
by Martinlf
Differences I'm dying to know about
Jul 8, 2018 by Reify in genus Tricorythodes
2
Jul 9, 2018
by Martinlf
Mayfiles other than Callibaetis
Jan 15, 2018 by Royal_Coach in genus Callibaetis
1
Jan 15, 2018
by Millcreek
Polymitarcyidae Question
Jun 22, 2017 by Steamntrout in species Ephoron album
1
Jun 22, 2017
by Crepuscular
Steamntrout
Jun 14, 2017 by Steamntrout in species Leptophlebia nebulosa
0
Clinger nymphs are shaped that way to hang in really fast currents. Really? Featured Topic
Feb 23, 2013 by Entoman in genus Rhithrogena
14
Jun 14, 2017
by Steamntrout
Hex hatch water temperature range?
May 23, 2014 by NEMatt in species Hexagenia limbata
4
Jul 5, 2016
by Bombillo
What is the big DEAL about the HEX? [Page: 1, 2]
Jun 21, 2006 by Spinner in species Hexagenia limbata
21
Jul 5, 2016
by Bombillo
Fly choice during an Ephoron hatch
Aug 3, 2007 by Jmd123 in genus Ephoron
13
Jan 31, 2016
by Martinlf
rotunda
Jan 25, 2015 by CharlieBugs in species Ephemerella invaria
8
Feb 1, 2015
by Gutcutter
So is Ep Infrequens now known as Ep Dorothea? [Page: 1, 2]
Feb 17, 2008 by Wbranch in species Ephemerella dorothea infrequens
20
Jul 1, 2014
by Crepuscular
Predicting a hatch?
Apr 2, 2008 by U2ill in order Ephemeroptera
2
Jun 24, 2014
by TNEAL
Green Drake Hatch Temp?
May 23, 2014 by NEMatt in species Ephemera guttulata
1
May 23, 2014
by Entoman
Mayfly larvae -wigglers preservation as bait [Page: 1, 2]
Jun 2, 2007 by Teacherprea in species Hexagenia limbata
20
Apr 29, 2014
by TNEAL
Drunella cornuta on the Brodhead at Stroudsburg PA
Apr 21, 2014 by Reify in species Drunella cornuta
11
Apr 24, 2014
by Brookyman
The Tully Trico season
Jun 24, 2013 by BioGriz in genus Tricorythodes
10
Dec 17, 2013
by 12345
Big Green River, Wisconsin, late September
Sep 28, 2013 by Admiralb in species Baetis brunneicolor
1
Sep 30, 2013
by Entoman
GD Shuck
May 29, 2013 by Martinlf in species Ephemera guttulata
10
Jun 2, 2013
by Crepuscular
Something like recurvata, but different.
Apr 6, 2013 by DayTripper in species Litobrancha recurvata
8
Apr 14, 2013
by Oldredbarn
An important hatch
Jun 26, 2006 by Troutnut in species Baetisca laurentina
2
Apr 8, 2013
by Willy
Instant Baetid Nymph Patterns [Page: 1, 2]
Feb 1, 2012 by PaulRoberts in family Baetidae
36
Mar 7, 2013
by PaulRoberts
florida mayfly nymph imitations
Sep 5, 2012 by Homer47 in species Eurylophella temporalis
2
Sep 5, 2012
by Sayfu
M. ithaca in M. mediopunctatum section?
Sep 1, 2012 by GONZO in species Stenonema mediopunctatum
3
Sep 4, 2012
by Entoman
Hex Hatch 2012
Apr 15, 2012 by Hdhungryman in genus Hexagenia
5
Aug 12, 2012
by Taxon
Hexagenia Limbata (Hex) Nymph in Captivity
Aug 12, 2012 by Hdhungryman in order Ephemeroptera
0
How to catagorize 2 and 3 tailed mayflies?
Apr 21, 2007 by Riverratben in order Ephemeroptera
13
Jun 14, 2012
by Brookyman
Stenonema femoratum male spinner
May 21, 2012 by Jmw975 in genus Stenonema
3
May 21, 2012
by Entoman
Litobrancha recurvata
May 14, 2012 by Crepuscular in species Litobrancha recurvata
4
May 14, 2012
by Crepuscular
Isonichya Bicolor [Page: 1, 2]
Mar 26, 2012 by CraigK in family Isonychiidae
21
Mar 29, 2012
by Entoman
North Country Spiders for Baetids [Page: 1, 2] Featured Topic
Oct 25, 2011 by Entoman in family Baetidae
27
Feb 16, 2012
by Softhackle
Added more Heptagenia culacantha info
Dec 19, 2006 by Troutnut in species Heptagenia culacantha
12
Feb 8, 2012
by Entoman
Western Paraleptophlebia
Feb 4, 2012 by Entoman in genus Paraleptophlebia
17
Feb 7, 2012
by Entoman
Invaria - Dorothea confusion
Feb 1, 2012 by Entoman in genus Ephemerella
17
Feb 7, 2012
by Entoman
I like this
Jan 26, 2012 by Jawajohn in family Baetidae
2
Jan 27, 2012
by Martinlf
acentrella nymph [Page: 1, 2]
Nov 3, 2006 by Goose in genus Acentrella
20
Sep 3, 2011
by Oldredbarn
Stillwater Mayfly Nymph Collection Techniques
Aug 4, 2011 by Taxon in order Ephemeroptera
9
Aug 11, 2011
by Goose
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