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American Emerald (Cordulia)
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American Emerald (Cordulia shurtleffii)
Photo#64242
Copyright © 2006
tom murray
American Emerald -
Cordulia shurtleffii
Packer Saddle, Sierra County, California, USA
June 30, 2006
Dragonflies through Binoculars lists only one somatochlora emerald for California. This and about 20 others were found at 7,000 - 8,000 feet.
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Contributed by
tom murray
on 15 July, 2006 - 8:48pm
Last updated 16 July, 2006 - 9:54am
Ringed Emerald?
Tom,
Those terminals don't look to me like S. albicincta, which are squared off and often meet (and curl up sharply) at the apex. You got a better shot of them? Why isn't this Cordulia?
…
Bryan Pfeiffer
, 16 July, 2006 - 5:40am
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American Emerald
That would probably make the most sense. It just looked too big for a Cordulia. They must eat good up in those western mountains. This was the only picture I got. They wouldn't let me get much closer than 10 feet.
Brian, thanks for straightening this out.
…
tom murray
, 16 July, 2006 - 9:54am
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Ringed Emerald?
According to
Kathy Biggs' site
, there's also
Somatochlora albicincta
, the Ringed Emerald. It's said to be only seen a few times in California, but the distribution map shows Plumas County (Sierra County's neighbor to the north) as having at least one confirmed record.
They're faint, but I think I see the white rings at the edge of each abdominal segment that characterize
Somatochlora albicincta
.
…
Chuck Entz
, 15 July, 2006 - 11:15pm
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Somatochlora albicincta
That looks like the best fit. The terminal appendages are right, the metallic green thorax, and the faint white rings look good. Thanks Chuck!!
…
tom murray
, 15 July, 2006 - 11:34pm
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Hey Tom
What does the Dragonfly book list?
…
A.W. Thomas
, 15 July, 2006 - 10:16pm
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Here's a website
(1)
that lists California Emeralds, and the only ones are American, Ringed, and Mountain.
It doesn't look like American, and I don't see any white rings on the abdomen, but I'm not sure if the terminal appendages are right for Mountain.
…
tom murray
, 15 July, 2006 - 10:59pm
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You missed the point
You mentioned
Butterflies
through binoculars, and Tony was thoughtfully (
NOT
) calling it to your attention :)
…
Chuck Entz
, 15 July, 2006 - 11:18pm
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Now I get it:-(
I've been at the computer too long tonight.
…
tom murray
, 15 July, 2006 - 11:30pm
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I apologize.
I wasn't challenging your ID and did not expect any extra work on your part; thought you would simply edit "Butterflies".
…
A.W. Thomas
, 16 July, 2006 - 8:29am
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no need to apologize
When I realized what I did, I just laughed at myself:-)
…
tom murray
, 16 July, 2006 - 9:56am
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