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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.

The Middle Fork of the Koyukuk River in Alaska

Stream photos

Featured on the forum
Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)
Re: Trico Tips
In the Mayfly Genus Tricorythodes by Martinlf
Re: UV spectrum and trout
In General Discussion by Martinlf
Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)
Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)
Perlodidae (Springflies and Yellow Stones) Stonefly NymphPerlodidae (Springflies and Yellow Stones) Stonefly Nymph
Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
11 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, Page 2

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  2. Fly Hatch Talk, Page 2

You can create new topics in this section from each hatch's page in the insect section.
Topic
Replies
Last Reply
Helopicus subvarians (Stonefly) common in New York waters!
Jan 7, 2014 by Walleye in genus Helopicus
6
Jan 9, 2014
by Entoman
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
Dobson Fly [Page: 1, 2]
Jun 23, 2011 by Jesse in genus Corydalus
26
Sep 12, 2013
by PaulRoberts
Anyone have hellgrammite experiences to share? [Page: 1, 2, 3]
Nov 18, 2006 by Troutnut in family Corydalidae
56
Aug 23, 2013
by Trout_House
GD Shuck
May 29, 2013 by Martinlf in species Ephemera guttulata
10
Jun 2, 2013
by Crepuscular
Arctopsyche grandis
Sep 7, 2011 by Flymonster in species Arctopsyche grandis
6
May 20, 2013
by Flymonster
White Miller Bug
May 3, 2013 by MIKE54 in species Nectopsyche albida
3
May 4, 2013
by Adirman
little green stonefly
Apr 28, 2013 by Hoss in order Plecoptera
4
May 2, 2013
by Jodea
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
Help to get some specimens of the isopod Caecidotea communis
Mar 28, 2013 by Leonardo in family Asellidae
11
Mar 29, 2013
by Leonardo
Instant Baetid Nymph Patterns [Page: 1, 2]
Feb 1, 2012 by PaulRoberts in family Baetidae
36
Mar 7, 2013
by PaulRoberts
little black stoneflies
Nov 28, 2012 by CaseyP in family Capniidae
5
Nov 29, 2012
by Entoman
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
found these in runoff to our creek
Aug 20, 2009 by Deke in order Trichoptera
1
Aug 9, 2012
by Sayfu
Arcynoptryx compacta name change
Jul 26, 2012 by Bnewell in genus Skwala
6
Jul 28, 2012
by Entoman
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
Pupa color?
Mar 27, 2008 by Frankcoz in genus Chimarra
6
Apr 5, 2012
by Entoman
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
Perlesta placida
Jul 3, 2011 by Mad4Trout in species Perlesta placida
14
Nov 27, 2011
by Mad4Trout
Skwala
Jan 16, 2011 by Entoman in genus Skwala
9
Nov 2, 2011
by Sayfu
october caddis
Oct 6, 2011 by Amosg in genus Dicosmoecus
0
acentrella nymph [Page: 1, 2]
Nov 3, 2006 by Goose in genus Acentrella
20
Sep 3, 2011
by Oldredbarn
Damsefly Nymphs: Odonata Zygoptera
Dec 9, 2007 by WildcatRob in order Odonata-Zygoptera
3
Aug 29, 2011
by Sayfu
Stillwater Mayfly Nymph Collection Techniques
Aug 4, 2011 by Taxon in order Ephemeroptera
9
Aug 11, 2011
by Goose
Ephemerellid wings
Aug 3, 2011 by Entoman in family Ephemerellidae
3
Aug 4, 2011
by Entoman
Taxonomy and DNA [Page: 1, 2, 3, 4]
Jul 23, 2011 by Gutcutter in order Ephemeroptera
61
Aug 3, 2011
by PaulRoberts
Red Heptagenia? [Page: 1, 2]
Jul 19, 2011 by GONZO in genus Cinygmula
30
Jul 23, 2011
by PaulRoberts
Cinygma mayflies
Jul 15, 2011 by Bnewell in genus Cinygma
2
Jul 19, 2011
by Entoman
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