**Male Ephemerella subvaria (Hendrickson) Mayfly Dun Pictures**

Mayflies

Caddisflies

Stoneflies

Classification

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)

» Genus Ephemerella (Hendricksons, Sulphurs, PMDs)

» Species subvaria (Hendrickson)

I collected this male Hendrickson dun and a female in the pool on the Beaverkill where the popular Hendrickson pattern was first created. He is descended from mayfly royalty.

This mayfly was collected from the Beaverkill River on April 19th, 2006 and added to Troutnut.com on April 22nd, 2006.

View Full Size and Comment (2X larger)

Buy stuff with this picture on it

Male Ephemerella subvaria (Hendrickson) Mayfly Dun from the Beaverkill River in New York

View Full Size and Comment (2X larger)

Recent Discussions of this Dun

My First Hendrickson Hatch 1 Reply »

Posted by MarkP on May 19, 2012

Last reply on May 22, 2012 by Entoman

Got to experience my first hatch of these flies on a stream where they aren't listed as having them present. Didn't last too long. Took place at 9:30 am and lasted about 30 minutes. Fish didn't rise to them during the hatch but I couldn't keep them off of a #18 BWO later in the day.

Reply Unit of Measure

Posted by Flybyknight on Jan 12, 2008

Look at the ruler. There are 10 clicks to a number.
I believe that we are looking at millimeters, not inches,
IMHO.

Dick

Reply Hendrickson size 2 Replies »

Posted by Jpsully on Jan 10, 2007

Last reply on Mar 16, 2007 by Matokuwapi

Jason:

Looking at the fifth photo from the top (the one with the ruler under the fly), it would appear that if you were to rotate the fly just a bit to the left, it would show that the fly is over one inch (25mm) long. That would make it twice as long as any Hendrickson I have ever seen. The average Hendrickson (to the best of my knowledge) is usually around 10-12mm (or about 1/2 inch), hook size 10-12. The hook size just doesn't seem to fit either. Where am I going wrong when looking at this fly (and hook)?

JP

Start a Discussion of this Dun:

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

Male Ephemerella subvaria (Hendrickson) Mayfly Dun Pictures

Recent Discussions of this Dun

Start a Discussion of this Dun:

Jargon Defined:

**Male Ephemerella subvaria (Hendrickson) Mayfly Dun Pictures**