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

> > Need help identifying!!



Jsawatzky has attached these 3 pictures to aid in identification. The message is below.
View Full SizeView Full Size (4X larger)
View Full SizeView Full Size (1.6X larger)
View Full SizeView Full Size (1.6X larger)
JsawatzkyJune 26th, 2015, 9:18 pm
Posts: 1My 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
MillcreekJune 26th, 2015, 9:57 pm
Healdsburg, CA

Posts: 356
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
EntomanJuly 3rd, 2015, 2:14 am
Northern CA & ID

Posts: 2604
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.
"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
PaulRobertsJuly 3rd, 2015, 10:00 am
Colorado

Posts: 1776
Yes, young Siphlonurus. I found my first in a ditch in a hay field a good 2 miles from the nearest stream.
EntomanJuly 4th, 2015, 1:17 am
Northern CA & ID

Posts: 2604
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
CrenoJuly 5th, 2015, 6:16 pm
Grants Pass, OR

Posts: 305
and they (along with corixids) carry on just fine in open sewage ponds. tough buggers :-)

Quick Reply

You have to be logged in to post on the forum. It's this easy:
Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.

Related Discussions

TitleRepliesLast Reply
Suwallia sp.
In the Photography Board by Millcreek
0
Siphlonurus sp.
In the Identify This! Board by Millcreek
0
Re: Siphlonurus sp.
In Ameletus Mayfly Nymph by Millcreek
1Feb 2, 2020
by Troutnut
Video report full HD. Rafting and fishing Siberian taiga rivers.
In General Discussion by VladimirR
0
Re: Epeorus sp. (longimanus?)
In the Identify This! Board by Millcreek
9Dec 14, 2014
by Entoman
Re: Ephemerella maculata
(1 more)

In the Photography Board by Millcreek
3Apr 12, 2015
by PaulRoberts
Re: Back to Elk Creek
In Fishing Reports by Wbranch
2Nov 18, 2015
by Wbranch
Re: Calineuria californica and Hesperoperla pacifica
(3 more)

In the Photography Board by Millcreek
1Jan 30, 2016
by Martinlf
Re: High Water fishing in the Ozarks
In Fishing Reports by Motrout
2May 24, 2010
by Motrout
Re: Near French Creek, PA
In the Identify This! Board by Lyrae
5May 13, 2007
by GONZO
Most Recent Posts
Re: large free living caddis rhyacophila?
In the Identify This! Board by Kjfeen (Taxon replied)