Salmonflies
Pteronarcys californica
The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
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This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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Jsawatzky
Posts: 1
Posts: 1
Jsawatzky on Jun 26, 2015June 26th, 2015, 5:18 pm EDT
My husband brought back a bottle of gravel from a river in middle Quartz creek in pitkin Colorado, he had added tap water to the gravel while in pitkin. Well I just noticed these 2 little bug/fish like creatures swimming around in the bottle today( it's been a month since we brought the bottle back and it has been sealed) it is hard to get a good clear picture but we really like to get some sort of idea as to what they are
Millcreek on Jun 26, 2015June 26th, 2015, 5:57 pm EDT
As near as I can tell they are mayfly nymphs. They would appear to be either Siphlonurus or Callibaetis species.
http://www.troutnut.com/topic/8794/Siphlonurus-sp
http://www.troutnut.com/topic/8823/Callibaetis-sp
Hope this helps,
Mark
http://www.troutnut.com/topic/8794/Siphlonurus-sp
http://www.troutnut.com/topic/8823/Callibaetis-sp
Hope this helps,
Mark
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
-Albert Einstein
Entoman on Jul 2, 2015July 2nd, 2015, 10:14 pm EDT
Welcome to the forum!
I would go with the former based on the proportions. The length and size of the abdomens together with the crowding of the pronounced gills on the upper segs point to Siphlonurus (Gray Drake). The shorter tails/antennae/legs and wide heads do as well. They look to be fairly immature with some weeks to go before hatching.
I would go with the former based on the proportions. The length and size of the abdomens together with the crowding of the pronounced gills on the upper segs point to Siphlonurus (Gray Drake). The shorter tails/antennae/legs and wide heads do as well. They look to be fairly immature with some weeks to go before hatching.
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman
PaulRoberts on Jul 3, 2015July 3rd, 2015, 6:00 am EDT
Yes, young Siphlonurus. I found my first in a ditch in a hay field a good 2 miles from the nearest stream.
Entoman on Jul 3, 2015July 3rd, 2015, 9:17 pm EDT
Yeah, isn't that amazing? Fishing the upper Williamson in OR a few years ago I was crossing a flooded grassland at least 1/2 mile from the river. My waders were covered with nymphs... Not one however was recovered from my bug nets planted at the stream margins!
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman
Creno on Jul 5, 2015July 5th, 2015, 2:16 pm EDT
and they (along with corixids) carry on just fine in open sewage ponds. tough buggers :-)
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