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> > Argia and Enallagma nymphs

Millcreek has attached these 4 pictures to aid in identification. The message is below.
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Argia nymph
Argia nymph
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Argia nymph
Argia nymph
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Enallagma nymph
Enallagma nymph
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Enallagma nymph
Enallagma nymph
MillcreekFebruary 4th, 2017, 3:16 pm
Healdsburg, CA

Posts: 291
These were found in the Russian River. The Argia nymphs were found under gravel and cobble in glides and the Enallagma was found on vegetation floating under the surface of the water. Both are damselflies when they emerge. Both are about 18 mm in length.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
PaulRobertsFebruary 5th, 2017, 8:39 am
Colorado

Posts: 1750
Very nice. Were these in coldwater habitat? Always interesting to find dragons in "odd" places. We have them up here in the mountains -and some large ones- quite a distance from standing water. They are either emerging from tiny headwaters, or can travel some distance. Insects can also be sucked up by updrafts and deposited some distance away, but dragons are strong fliers and some of the ones I see skimming over rocky outcrops seem so out of place.
MillcreekFebruary 5th, 2017, 9:32 am
Healdsburg, CA

Posts: 291
Paul- Around here 50 degrees is a cold water temperature. The Argia are found at that temperature and warmer ones. The Enallagma generally are found later in the year in warmer water (60-70 degrees). Dragonflies and damselflies generally prefer warmer waters in this area.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
PaulRobertsFebruary 7th, 2017, 5:35 pm
Colorado

Posts: 1750
Same here, I think. Dunno where those "mountain dragons" come from. I know just who to ask though. While filming bass for one of my documentary videos I'd run into John Barr (Copper John fame) photographing dragons. He is a dragonfly aficionado and I'm sure we'll cross paths again this summer.
Jmd123February 7th, 2017, 6:09 pm
Oscoda, MI

Posts: 2083
This past summer while sampling [REDACTED] Pond, on our last Field Biology trip, we caught some beautiful leaf-green dragonfly nymphs while sweeping through some emergent grasses in the shallows. Sadly, as expected, their colors faded in alcohol...they were fairly slender, about 1.5" long, and had a lighter stripe down their sides. Should have taken some kind photo - this year I'll get some when we go there. I had honestly never seen dragonfly nymphs that color before, so used to seeing the dark brown ones from the debris on the bottom, it was a beautiful example of camouflage.

Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...

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