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

Female Acerpenna pygmaea (Blue-Winged Olive) Mayfly Dun Pictures

Classification
Kingdom Animalia (Animals)
» Phylum Arthropoda (Arthropods)
» Class Insecta (Insects)
» Order Ephemeroptera (Mayflies)
» Family Baetidae (Blue-Winged Olives)
» Genus Acerpenna (Blue-Winged Olives)
» Species pygmaea (Blue-Winged Olive)
Fly Imitations by Orvis
 I'm guessing this specimen is in the genus Acerpenna because of the very sharp costal process (
The costal process of a Baetidae dun.
The costal process of a Baetidae dun.
Costal process: A bump or point sticking up from the front margin of an insect's wing, usually the rear wing of certain mayflies. It is sometimes called a costal projection.) on her hind wing. I'm guessing pygmaea because it is the most common species.

This mayfly was collected from the Upper Midwest on July 1st, 2005 and added to Troutnut.com on April 22nd, 2006.

View Full SizeView Full Size (2.7X larger)
AddEmail
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
View Full SizeView Full Size (2.7X larger)
AddEmail
CameraCanon EOS 20D

Recent Discussions of this Dun

ID 4 Replies »
Posted by Taxon on Jul 2, 2006
Last reply on Sep 22, 2006 by Troutnut
Jason-

My guess would be Baetis brunneicolor.

Roger
Reply

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