Greater Spreadwinged Damselfly

I found a good sized population of these damselflies near an irrigation pond in Canon City, CO. Linda Rockwell identified the species as Greater Spreadwinged Damselfly (Archilestes grandis).

When I read about this species on the field marks matched though the "continuous pale yellow side stripe on thorax" as described looks whiter on this damselfly and it may be immature as they note. I thought it was a male because it's top appendage matched their description and drawing.

I submitted photos to and it was confirmed as as Greater Spreadwing and photos placed in that species online database. It was confirmed as a male on Arthropods Colorado facebook page. SeEtta


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