Identification needs
This page includes an automated list of specimens in need of more detailed identification. Because my academic specialty is salmonid behavior and I'm not an entomologist by training, I can only partially keep up with accurately identifying all the invertebrates I collect. I haven't had time to develop the at-a-glance familiarity experts have with many western species, and keying them out is often time-consuming or impossible from photographs, even with all the closeups I take. So I still rely on the generous volunteer help of more experienced entomologists to keep up with specific IDs. This page is intended to facilitate that help and prevent specimens from falling through the cracks.
If you can help with an improved ID on any of the specimens listed, please comment on the specimen page or shoot me an email at jason@troutnut.com with the specimen ID number (visible in its URL) and identification. If you can provide the rationale for the identification in a public comment, so others can learn more from it, that's ideal -- but feel free to just drop the name if you're busy and you're somebody I already know and trust to get it right.
Each list is prioritized with the specimens most recently added to the site appearing first, regardless of collection date.
Specimens unidentified to family
Mayflies unidentified to family
None. All caught up on these.
Caddisflies unidentified to family

Added to Troutnut.com by Troutnut on July 18, 2019

I somehow forgot to photograph this important specimen against the hooks size chart, but fortunately I preserved a few. The body length is about 6 mm, and total length from head to wingtip is 9 mm.
Added to Troutnut.com by Troutnut on July 18, 2019

Added to Troutnut.com by Troutnut on July 17, 2019

Added to Troutnut.com by Troutnut on July 17, 2019
Stoneflies unidentified to family
None. All caught up on these.
Diptera (true flies) unidentified to family
None. All caught up on these.
Specimens unidentified to genus
Mayflies unidentified to genus

Added to Troutnut.com by Troutnut on June 14, 2019

Added to Troutnut.com by Troutnut on June 12, 2019

Added to Troutnut.com by Troutnut on June 12, 2019

Added to Troutnut.com by Troutnut on July 3, 2018

Added to Troutnut.com by Troutnut on June 21, 2018

Added to Troutnut.com by Troutnut on July 12, 2017

Added to Troutnut.com by Troutnut on July 20, 2011

Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on May 3, 2007

Added to Troutnut.com by Troutnut on August 11, 2006

Added to Troutnut.com by Troutnut on August 11, 2006

Added to Troutnut.com by Troutnut on August 11, 2006

Added to Troutnut.com by Troutnut on May 26, 2006



Added to Troutnut.com by Troutnut on May 26, 2006

Added to Troutnut.com by Troutnut on May 25, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 16, 2006

Added to Troutnut.com by Troutnut on April 22, 2006


Added to Troutnut.com by Troutnut on April 22, 2006

Added to Troutnut.com by Troutnut on April 14, 2006
Caddisflies unidentified to genus

Added to Troutnut.com by Troutnut on July 17, 2019

Added to Troutnut.com by Troutnut on July 17, 2019

Added to Troutnut.com by Troutnut on July 17, 2019

Added to Troutnut.com by Troutnut on June 15, 2019

Added to Troutnut.com by Bnewell on July 29, 2011

Added to Troutnut.com by Troutnut on May 18, 2007

Added to Troutnut.com by Troutnut on May 18, 2007

Added to Troutnut.com by Troutnut on April 5, 2006

Added to Troutnut.com by Troutnut on April 5, 2006
Stoneflies unidentified to genus

Added to Troutnut.com by Troutnut on June 13, 2019

Added to Troutnut.com by Bnewell on June 26, 2011

Added to Troutnut.com by Troutnut on April 20, 2011

Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on May 16, 2006

Added to Troutnut.com by Troutnut on April 7, 2006

Added to Troutnut.com by Troutnut on April 7, 2006

Added to Troutnut.com by Troutnut on April 7, 2006

Added to Troutnut.com by Troutnut on April 5, 2006
Specimens of select taxa unidentified to species
Ephemerella mayflies unidentified to species


Many females of this species were gathered in tight clouds to lay their eggs over the riffles in a mid-sized Pocono stream right at dusk. It would have been a fishable spinner fall if I'd stuck around to wait for them.
Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on April 22, 2007

Added to Troutnut.com by Troutnut on May 26, 2006

Added to Troutnut.com by Troutnut on May 24, 2006

Added to Troutnut.com by Troutnut on May 24, 2006
Drunella mayflies unidentified to species

Added to Troutnut.com by Troutnut on July 18, 2019
Paraleptophlebia mayflies unidentified to species

Added to Troutnut.com by Troutnut on July 29, 2019

Added to Troutnut.com by Troutnut on June 11, 2019

Added to Troutnut.com by Bnewell on June 29, 2011

Added to Troutnut.com by Bnewell on June 27, 2011

Added to Troutnut.com by Bnewell on June 26, 2011

Added to Troutnut.com by Bnewell on June 26, 2011

Added to Troutnut.com by Troutnut on June 4, 2007

Added to Troutnut.com by Troutnut on May 10, 2007

Added to Troutnut.com by Troutnut on October 4, 2006

Added to Troutnut.com by Troutnut on October 3, 2006

Added to Troutnut.com by Troutnut on May 16, 2006

Added to Troutnut.com by Troutnut on May 16, 2006

Added to Troutnut.com by Troutnut on April 21, 2006

Added to Troutnut.com by Troutnut on April 7, 2006
Siphlonurus mayflies unidentified to species

Added to Troutnut.com by Troutnut on June 14, 2019
Rhithrogena mayflies unidentified to species

Added to Troutnut.com by Troutnut on July 18, 2019

Added to Troutnut.com by Troutnut on July 18, 2019

Added to Troutnut.com by Troutnut on July 18, 2019

Added to Troutnut.com by Troutnut on July 17, 2019

Added to Troutnut.com by Bnewell on July 10, 2011

Added to Troutnut.com by Bnewell on June 28, 2011


Added to Troutnut.com by Bnewell on June 28, 2011

Added to Troutnut.com by Bnewell on June 28, 2011


Added to Troutnut.com by Bnewell on June 26, 2011

Added to Troutnut.com by Troutnut on June 8, 2007
Cinygmula mayflies unidentified to species

Added to Troutnut.com by Troutnut on July 30, 2019

Added to Troutnut.com by Troutnut on June 14, 2019

Added to Troutnut.com by Troutnut on June 13, 2019

Added to Troutnut.com by Troutnut on June 13, 2019

Added to Troutnut.com by Troutnut on July 2, 2017

This one was collected in association with a female dun probably of the same species.
Added to Troutnut.com by Troutnut on July 2, 2017

Added to Troutnut.com by Troutnut on July 20, 2011

Added to Troutnut.com by Troutnut on July 20, 2011

Added to Troutnut.com by Troutnut on July 20, 2011

Added to Troutnut.com by Troutnut on July 20, 2011

Added to Troutnut.com by Bnewell on June 28, 2011

Added to Troutnut.com by Troutnut on April 20, 2011