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Photo#555682
Paiute Dancer - Argia alberta - female

Paiute Dancer - Argia alberta - Female
Puccoon Prairie, Chichaqua Bottoms Greenbelt, Polk County, Iowa, USA
July 29, 2011
Size: ~35 mm
Lone individual alighted on dead plant stem in sand prairie.

gathering_2011

Moved
Moved from Damselflies. Iowa odonate expert Ann Johnson agrees with this ID.

In my opinion - Argia alberta (female)

 
Iowa database
According to the Iowa Odonata Survey, Argia alberta has been previously reported from Iowa, although this observation would become the farthest east county report.

 
Argia alberta
The thoracic markings look pretty good for alberta, the abdominal markings are a bit off, but I agree that alberta is the best match. However, this is not the farthest east in Iowa for this species. I had the first specimen for Iowa in Black Hawk county back in 1972. This was, and still is, way east of the normal range for the species. I'm glad to see it has been found in between its normal range in western Iowa and my Black Hawk co. location.

Looks to be a female Argia
We were going to suggest A. plana, but don't know if that species can have a forked shoulder stripe. Let's wait to see what William suggests.