Troutnut.com Fly Fishing for Trout Home
User Password
or register.

Isonychia bicolor (Mahogany Dun) Mayfly Nymph Pictures

Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Isonychiidae (Slate Drakes)
» Genus Isonychia (Slate Drakes)
» Species bicolor (Mahogany Dun)
 This Isonychia bicolor nymph from the Catskills displays the prominent white stripe sometimes characteristic of its species. This is the first such specimen I've photographed, because members of the same species in the Upper Midwest have a more subdued stripe (and were once thought to be a different species, Isonychia sadleri). The striking coloration on this eastern nymph is more appealing.

This mayfly was collected from the Catskills on April 19th, 2006 and added to Troutnut.com on April 21st, 2006.

View Full SizeView Full Size (2.7X larger)
BackgroundsBuy GiftsBuy PrintAddEmail
CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
Buy GiftsAddEmail
CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
AddEmail
This species does not behave well for the camera, so I eventually killed this specimen in alcohol to get a better picture of the mouth parts. This resulting unnatural pose shows them well.
This species does not behave well for the camera, so I eventually killed this specimen in alcohol to get a better picture of the mouth parts. This resulting unnatural pose shows them well.
CameraCanon EOS 20D
View Full SizeView Full Size (5.8X larger)
AddEmail
CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
Buy PrintAddEmail
CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
AddEmail
CameraCanon EOS 20D
View Full SizeView Full Size (2.7X larger)
AddEmail
CameraCanon EOS 20D

Start a Discussion:

You must log in at the top of the page to post. If you haven't registered yet, it's this easy:

Username:     Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.
Top 10 Hatches
»
Baetidae
»
Ephemerellidae
»
Baetis
»
Hexagenia limbata
»
Heptageniidae
»
Isonychia
»
Hydropsychidae
»
Ephemerella
»
Ephemerella subvaria
»
Brachycentridae
Top 5 Products
»
Troutnut.com Calendars
»
Be the trout. Eat mayflies.
»
I outfish my daddy!
»
I love buggers. Big, green, wooly ones.
»
Fisherman's Ruler: Who's to say how long an inch is, anyway?
Top 5 Specimens
»
Corydalus Hellgrammite Larva
»
Leptophlebia cupida Mayfly Dun
»
Neophylax Caddisfly Adult
»
Rhyacophila Caddisfly Pupa
»
Hexagenia atrocaudata Mayfly Spinner
Recent Updates
Last update July 19th, 2007.
»
New Specimen: Drunella doddsii Mayfly Dun
»
74 New Landscape/Trout Pictures
»
55 New Landscape/Trout Pictures
»
3 New Landscape/Trout Pictures
»
1 New Landscape/Trout Picture
»
New Specimen: Agnetina Stonefly Adult
»
New Specimen: Rhithrogena Mayfly Spinner
»
New Specimen: Maccaffertium terminatum Mayfly Dun
»
New Specimen: Maccaffertium terminatum Mayfly Spinner
»
New Specimen: Maccaffertium terminatum Mayfly Spinner
»
New Specimen: Drunella tuberculata Mayfly Dun
»
3 New Underwater Photos
»
New Streamside Picture of Drunella lata
»
65 New Landscape/Trout Pictures
»
13 New Underwater Photos
»
New Specimen: Paraleptophlebia Mayfly Dun
»
New Specimen: Ephemera guttulata Mayfly Spinner
»
New Specimen: Ephemerella needhami Mayfly Dun
»
New Specimen: Ephemerella septentrionalis Mayfly Dun
»
New Specimen: Ephemera guttulata Mayfly Dun
Misc. Websites