Blog & Latest Updates
Fly Fishing Articles
Insects by Common Name

Trout Streams & Rivers
Trout Pictures
Underwater Pictures

Desktop Backgrounds
Stream & Bug Videos
Image Use Pricing

Agnetina capitata (Golden Stone) Stonefly Adult Pictures

Classification

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Plecoptera (Stoneflies)

» Family Perlidae (Golden Stones)

» Genus Agnetina (Golden Stones)

» Species capitata (Golden Stone)

This stonefly emerged in my aquarium, and unfortunately I severely damaged its wings just trying to catch it. It's still an interesting specimen, especially since I was able to also photograph the nymphal shuck (

Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.

Here's an underwater view of the pupal shucks of several already-emerged Brachycentrus numerosus caddisflies.

Shuck: The shed exoskeleton left over when an insect molts into its next stage or instar. Most often it describes the last nymphal or pupal skin exited during emergence into a winged adult.) it emerged from. I was surprised by just how light it was shortly after emerging. I photographed it a couple days later when it had darkened considerably; it was a pale, almost pastel yellow at first.

This stonefly was collected from Aquarium on May 1st, 2007 and added to Troutnut.com on May 3rd, 2007.

View Full Size and Comment (2.5X larger)

I forgot to photograph it on the ruler, so I did it a couple days later, but the fly had died and shriveled a little bit by then. Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

I forgot to photograph it on the ruler, so I did it a couple days later, but the fly had died and shriveled a little bit by then.

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

View Full Size and Comment (2.5X larger)

Agnetina capitata (Golden Stone) Stonefly Adult from Aquarium in New York

CameraCanon EOS 20D

Recent Discussions of this Adult

Agnetina capitata 6 Replies »

Posted by DOS on Mar 28, 2009

Last reply on Mar 29, 2009 by GONZO

I had plans to meet a few friends tonight at a local sports bar to watch the UFC fights, but as I got out of the shower, I found that a industrious capitata had hatched in my aquarium and managed to escape its mesh canopy and was mockingly buzzing the lights in my steamy bathroom. Well, several hours later and a six pack of Saranac Black and Tan, I'm still at home and have a question. On page 37 of Schwibert's Nymphs Volume II, he diagnoses the adult at 28mm. My specimen falls more than 10mm short. Is it possible I have misidentified this specimen or is it a simple case of size variation?

(User-posted images are only viewable in the forum section.)

(User-posted images are only viewable in the forum section.)

(User-posted images are only viewable in the forum section.)

(User-posted images are only viewable in the forum section.)

Posted by GONZO on May 15, 2007

Agnetina--probably capitata.

Start a Discussion of this Adult:

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

Troutnut.com is copyright © 2004-2024 Jason Neuswanger (email Jason). See my FAQ for information about use of my images.

privacy policy