Troutnut.com Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

Male Calineuria californica (Golden Stone) Stonefly Adult Pictures



 A few of these larger stoneflies were fluttering around the South Fork on an evening dominated by much smaller species.

This one has been difficult to identify. I can't spot any of the gill remnants characteristic of Perlidae, but the wing venation (Venation: The pattern in which the veins on the wings of an insect are arranged. It is usually one of the most useful identifying characteristics.) seems to point in that direction. I tried keying it out as Perlodidae but arrived at Isoperla, every western species of which has significantly smaller bodies than this one.

Edit: See forum comments for a likely correct identification.

This stonefly was collected from the South Fork Snoqualmie River on July 20th, 2019 and added to Troutnut.com on July 22nd, 2019.

View Full SizeView Full Size and Comment (6.4X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (5.8X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6X larger)
Add
I plan to try to start capturing wing venation in more of my photos for better identifiability. Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
I plan to try to start capturing wing venation in more of my photos for better identifiability.
View Full SizeView Full Size and Comment (6.7X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.5X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.6X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.7X larger)
Add
Taken with my usual glare-reducing polarized light and filter. Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
Taken with my usual glare-reducing polarized light and filter.
View Full SizeView Full Size and Comment (6.7X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.7X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.7X larger)
Add
Taken without my usual glare-reducing polarized light and filter, so the glare might enhance some details. Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
Taken without my usual glare-reducing polarized light and filter, so the glare might enhance some details.
View Full SizeView Full Size and Comment (6.7X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.7X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
View Full SizeView Full Size and Comment (6.7X larger)
Add
Taken without my usual glare-reducing polarized light and filter, so the glare might enhance some details. Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
Taken without my usual glare-reducing polarized light and filter, so the glare might enhance some details.
View Full SizeView Full Size and Comment (6.7X larger)
Add
Taken with my usual glare-reducing polarized light and filter. Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington
Taken with my usual glare-reducing polarized light and filter.
View Full SizeView Full Size and Comment (4.4X larger)
Add
Male Calineuria californica (Golden Stone) Stonefly Adult from the South Fork Snoqualmie River in Washington

Recent Discussions of this Adult

Hesperoperla or Calineuria 2 Replies »
Posted by Millcreek on Jul 22, 2019
Last reply on Jul 22, 2019 by Millcreek
Hesperoperla or Calineuria. Just a guess. These are similar to ones I've netted in California. The gill remnants don't always show and can be difficult to spot when they do. The size is right and the wing veining as well.

Here's a picture at bugguide of Hesperoperla.

https://bugguide.net/node/view/1257709

I'm leaning more towards Calineuria.
https://www.zoology.ubc.ca/~biodiv/entomology/main/Plecoptera/Perlidae/Calineuria%20californica%20(1dorsal).jpg

And here's a view of Hesperoperla's wings.

https:/bugguide.net/node/view/41324/bgimage
Reply

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:

Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.
Top 10 Fly Hatches
BaetisBaetidaeEphemerellidaeHexagenia limbataChironomidaeHeptageniidaeEphemerella subvariaEphemerellaIsonychiaHydropsychidae
Top Gift Shop Designs
I outfish my daddy!Electric blue Hendrickson dun.I love buggers. Big, green, wooly ones.I outfish my husband!Be the trout.
Eat mayflies.
Top Insect Specimens
Baetisca obesa Mayfly NymphNeophylax Caddisfly AdultCorydalus Hellgrammite LarvaRhyacophila fuscula Caddisfly LarvaBaetis Mayfly Dun
Miscellaneous Sites
Dalton Highway (Haul Road) Corridor Map