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

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

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


Genus Pachypsylla - Hackberry Psyllids

Phylum Arthropoda - Arthropods
Subphylum Hexapoda - Hexapods
Class Insecta - Insects
Order Hemiptera - True Bugs, Cicadas, Hoppers, Aphids and Allies
Suborder Sternorrhyncha - Plant-parasitic Hemipterans
Superfamily Psylloidea
Family Aphalaridae
Subfamily Pachypsyllinae
Genus Pachypsylla - Hackberry Psyllids

No Taxon celtidismamma complex
Species celtidisasterisca - Hackberry Star Gall Psyllid
Species celtidismamma - Hackberry Nipplegall Maker
Species celtidisumbilicus - Hackberry Disc Gall Psyllid
Species celtidisvesicula - Hackberry Blister Gall Psyllid
Species cohabitans - Inquiline Hackberry Leaf Gall Psyllid
Species celtidisgemma - Hackberry Bud Gall Psyllid
Species celtidisinteneris - Hackberry Twig Gall Psyllid
Species pallida - Hairy Bud Gall Psyllid
Species venusta - Hackberry Petiole Gall Psyllid