Lori - I hope you don't mind me posting these two images in your thread in response to jaguarondi's post - Bruce
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The aphid with wingbuds was found on a fence below willow. There were quite a few of them, some winged, some wingless and a few with wing buds. See these two pics taken on the same fence on the same day:
See also this thread posted last year:
Giant Willow Aphid - various forms
Bruce