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Animal Phylum Arthropoda (Arthropods)

Pictures Below
Arthropods include just about everything trout eat except for minnows, worms, and leeches.

Pictures of 1016 Arthropod Specimens:

Specimen Page:1234...103
Neophylax (Autumn Mottled Sedges) Caddisfly AdultNeophylax (Autumn Mottled Sedges) Caddisfly Adult View 20 PicturesThis large caddisfly looks really neat close-up.
Collected September 19, 2006 from Mystery Creek #43 in New York
Added to Troutnut.com by Troutnut on October 4, 2006
Specimen Page:1234...103

1 Streamside Picture of Arthropods:

Callibaetis spinner on an alpine lake in Washington's Cascades, the one referred to by the alias of Upper Lake in my Golden Trout trip report.  In this picture: Mayfly Genus Callibaetis (Speckled Duns). From Upper Lake in Washington.
Callibaetis spinner on an alpine lake in Washington's Cascades, the one referred to by the alias of Upper Lake in my Golden Trout trip report.

In this picture: Mayfly Genus Callibaetis (Speckled Duns).
LocationUpper Lake
Date TakenSep 3, 2017
Date AddedSep 5, 2017
AuthorTroutnut
CameraNIKON 1 AW1

122 Underwater Pictures of Arthropods:

Underwater Photo Page:1234...13
Hundreds of cased caddisfly larvae live on this log in a small brook trout stream.  In this picture: Insect Order Trichoptera (Caddisflies). From Eighteenmile Creek in Wisconsin.
Hundreds of cased caddisfly larvae live on this log in a small brook trout stream.

In this picture: Insect Order Trichoptera (Caddisflies).
Date TakenApr 14, 2004
Date AddedJan 25, 2006
AuthorTroutnut
Several Baetidae nymphs line up on a rock.  In this picture: Mayfly Family Baetidae (Blue-Winged Olives). From Mongaup Creek in New York.
Several Baetidae nymphs line up on a rock.

In this picture: Mayfly Family Baetidae (Blue-Winged Olives).
Date TakenApr 19, 2006
Date AddedApr 22, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
This is a close-up underwater view of a stillborn Ephemerella subvaria (Henrickson) female dun.  In this picture: Mayfly Species Ephemerella subvaria (Hendrickson). From the East Branch of the Delaware River in New York.
This is a close-up underwater view of a stillborn (
This stillborn Ephemerella subvaria dun is trapped in its shuck.
This stillborn Ephemerella subvaria dun is trapped in its shuck.
Stillborn: In fly fishing, a stillborn insect is one which got stuck in its nymphal or pupal shuck during emergence and floats helplessly on the surface instead of flying away. It is a specific class of cripple, although it is sometimes used interchangeably with that term.
)
Ephemerella subvaria (Henrickson) female dun.

In this picture: Mayfly Species Ephemerella subvaria (Hendrickson).
Date TakenApr 19, 2006
Date AddedApr 22, 2006
AuthorTroutnut
CameraPENTAX Optio WPi
Underwater Photo Page:1234...13

Recent Discussions of Arthropoda

Little Black Stonefly pics 9 Replies »
Posted by Adirman on Apr 14, 2018 in the species Allocapnia granulata
Last reply on Apr 17, 2018 by Adirman
Hey guys, went out on the Neversink for awhile today and had a look around, saw a lot of little dark flies, may be the little black stone fly? Hard to tell cuz looked like Caddis too. Looks like about a size 16? Any pics of available of this species would be great.


Thanks
ReplyEmerger pictures anyone??? 5 Replies »
Posted by Hellgie on Mar 30, 2010 in the genus Chimarra
Last reply on Apr 9, 2018 by Gazzer
I would like to see a picture of an emerging Chimarra or a pupa stage before emerging if anyone has one. I am baffled and curious to how and when they change from a yellow/orange larva to a black adult fly. Also, what would be a good emerger pattern for this fly? Lafontaine emerger in what color?
Replygetting midges down 9 Replies »
Posted by CaseyP on Dec 8, 2007 in the family Chironomidae
Last reply on Jan 17, 2018 by Ummm
says here midge pupae rise in the water and struggle in the film to become adults. my imitations are so small that they don't seem to go down very far in order to rise--ike a wet fly might at the end of the swing. any ideas? or am i fishing them wrong?
ReplyMayfiles other than Callibaetis 1 Reply »
Posted by Royal_Coach on Jan 15, 2018 in the genus Callibaetis
Last reply on Jan 15, 2018 by Millcreek
every book/article I read says Baetidae is the most imporant family and Callibaetis the most important genus of mayfly. Why? Does this just mean they are the most prolific? Am I not likely to encounter any other family/genus on a western river?
ReplyPolymitarcyidae Question 1 Reply »
Posted by Steamntrout on Jun 22, 2017 in the species Ephoron album
Last reply on Jun 23, 2017 by Crepuscular
What size are these nymphs & Sub Imago's?
Reply
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