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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » True Bugs, Cicadas, Hoppers, Aphids and Allies (Hemiptera) » Plant-parasitic Hemipterans (Sternorrhyncha) » Aphidoidea » Aphids (Aphididae) » Woolly Aphids and Gall-making Aphids (Eriosomatinae) » Pemphigini » Pemphigus » Poplar Petiolegall Aphid (Pemphigus populitransversus)
Photo#454054
cottonwood petiole gall - Pemphigus populitransversus
Copyright © 2010 John Pearson

cottonwood petiole gall - Pemphigus populitransversus
Volga River Recreation Area, Fayette, Fayette County, Iowa, USA
September 11, 2010
Size: ~15 mm long X 10 mm dia.
Lone gall on petiole of Cottonwood (Populus deltoides) planted in lawn next to lake. It was located in the center of the petiole rather than at the base next to the blade, so I am assuming this is Pemphigus populitransversus.

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cottonwood petiole gall - Pemphigus populitransversus cottonwood petiole gall - Pemphigus populitransversus cottonwood petiole gall - Pemphigus populitransversus
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Contributed by John Pearson on 12 September, 2010 - 12:11pm

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