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BugGuide Gathering
Smoky Mountains
University of Tennessee Biological Field Station
August 8-10, 2008
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Photos from the last gathering (Minnesota 2007)

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Photo#153590
Aphid?

Aphid?
Redwood City, San Mateo County, California, USA
October 21, 2007
Size: 1 mm
40X - ventral view

Images of this individual: tag all
Aphids? Aphid? Aphid? Aphid?

whitefly
Aleyrodids have no discernable wing veins, or at most just a trace of one or two that fade out before the wing margins. Aphids, by contrast, have strong wing veins concentrated on the leading (costal) edge of the wing and branching out towards the other wing edges.

 
Thanks so much!
I've been puzzling over these little insects for days now. My only remaining dilemma is the presence of a small (and perhaps only single?) cornicle-like structure, seen best on the lateral view of the insect. I guess this is too small for a cornicle (which would have made it an aphid, correct?) - what is this structure?

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