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Species Tetraneura ulmi - Elm Sack Gall Aphid

galls - Tetraneura ulmi Tetraneura ulmi Tetraneura ulmi Tetraneura ulmi - female Tetraneura ulmi - female Tetraneura ulmi
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 Aphidoidea
Family Aphididae (Aphids)
Subfamily Eriosomatinae (Woolly Aphids and Gall-making Aphids)
Tribe Eriosomatini
Genus Tetraneura
Species ulmi (Elm Sack Gall Aphid)
Synonyms and other taxonomic changes
Aphis ulmi Linnaeus, 1758
Explanation of Names
ulmi is Latin for "of elm"
Makes galls on elm
European species. Introduced around 1890.
See Also
Colopha ulmicola, which is incorrectly referred to in some older sources as Tetraneura ulmi, leading to confusion with this species.
Internet References
Forestry Images: photos of galls and damage.
Encyclopedia of Life: images of galls, inside and out.
Biolib: some images of galls.
Annual report of the Maine Agricultural Experiment Station, 1910, p.216 (bulletin 181)    Gall Aphids of the Elm. "Tetraneura ulmisacculi" seems to be this species