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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Lastchance
Portage, PA

Posts: 437
Lastchance on Aug 30, 2010August 30th, 2010, 11:41 am EDT
Are these tiny BWOs that are coming off now and through the Fall a size 24? Also, can someone direct me to some photos of them? I saw one Saturday, which I thought was a Blue Quill Spinner, but now I think it was a BWO spinner. It had a dark thorax, a clear translucent body and another dark segment at the end.
Thanks,
Bruce
GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681
GONZO on Aug 30, 2010August 30th, 2010, 12:48 pm EDT
Bruce,

The spinner you saw was probably a male. A #24 seems a little too small for most Blue Quills (Paraleptophlebia), though many of the males have the "Jenny Spinner" coloration that you describe. (Blue Quill spinners have three tails.) That coloration is also common to many male baetids (two-tailed BWOs, if you will). The females will usually have a (mostly) solid color body that will range from olive to brown to light orange. Here are some photos of a few baetids that show the "Jenny Spinner" coloration in the males:

http://bugguide.net/node/view/249088/bgimage
http://bugguide.net/node/view/249089/bgimage
http://bugguide.net/node/view/249110/bgimage

For contrast, here is the female of the first species:

http://bugguide.net/node/view/249090/bgimage

I hope that helps, at least a little.
Lastchance
Portage, PA

Posts: 437
Lastchance on Aug 30, 2010August 30th, 2010, 3:30 pm EDT
Hi Gonzo: That's exactly what I saw on Saturday. So the the onlyu difference between those BWOs and Blue Quill spinners is basically the number of tails? Like many others in my beginning years of bug watching I always mistook Blue Quills for Tricos.
Thanks,
Bruce

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