What's That Bug? does not endorse extermination

Subject: Female Blue Dasher (Pachydiplax longipennis)
Location: Naperville, IL
August 21, 2012 9:46 pm
Hi Daniel~
I do believe this is a female blue dasher, from its appearance, its prevalence in Illinois, and its habit of perching, flying away, and then returning to the exact spot to perch again, which I understand is common of skimmers in the Libellulidae family of dragonflies. This seems to be the time of year when dragonflies abound in these parts.
All the best!
Signature: -Dori Eldridge

Female Blue Dasher

Hi Dori,
It is always a pleasure getting your lovely photos.  We agree that this appears to be a female Blue Dasher and it is a perfect match to this image on BugGuide.  The description from BugGuide is:  “A small blue dragonfly with a white face, a black tip to the abdomen, and a black-and-yellow-striped thorax. Females are recognized by the narrow yellow parallel stripes on the abdomen. Both sexes have an amber patch at the base of each hindwing. Males develop a sky-blue (or Carolina-blue) abdomen when they approach maturity.”  Your close-up provided an excellent view of the white face.

Female Blue Dasher

What's That Bug? does not endorse extermination
Location: Illinois
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