Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Genus Phylloxera

galls on hickory petiole - Phylloxera Carya Leaf Gall ID Request - Phylloxera green gall - Phylloxera Leaf gall - Phylloxera Gall found on Shag Bark Hickory - Phylloxera caryaegummosa St. Andrews leaf gall on Carya ovalis SA_G96 2017 2 - Phylloxera gall - Phylloxera Phylloxera notabilis  - Phylloxera
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Sternorrhyncha (Plant-parasitic Hemipterans)
Superfamily Phylloxeroidea
Family Phylloxeridae
Genus Phylloxera
Gall predation by a caterpillar:
Internet References
OK State U. Pecan phylloxera
NCSU: Ento Phylloxera on hickory