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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 » Pemphigus obesinymphae
Photo#1220718
Poplar Leaf-base gall - Pemphigus obesinymphae
Copyright © 2016 James Bailey

Poplar Leaf-base gall - Pemphigus obesinymphae
Big Rock Creek, Angeles National Forest, Los Angeles County, California, USA
May 7, 2016
The gall position at the base of the leaf rules out the other option, populitransversus, which as its name suggests forms the gall on the middle of the petiole itself.

Inside the gall is a woolly chamber with aphids.
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Contributed by James Bailey on 8 May, 2016 - 12:17pm
Last updated 21 February, 2022 - 10:49am

Moved
Moved from Pemphigus.
… Adam Kranz, 21 February, 2022 - 10:49am login or register to post comments

Moved
Moved from Pemphigus populicaulis.
… Adam Kranz, 21 February, 2022 - 9:37am login or register to post comments

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