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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

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

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

Photos of 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


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Species Uroleucon cirsii - Large Thistle Aphid

Uroleucon cirsii Cirsium arvense aphid - Uroleucon cirsii Aphid - Uroleucon cirsii Cirsium arvense host - Uroleucon cirsii Large Thistle Aphid - Uroleucon cirsii Large Thistle Aphid - Uroleucon cirsii
Classification
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 Aphidinae
Tribe Macrosiphini
Genus Uroleucon
No Taxon (Subgenus Uroleucon)
Species cirsii (Large Thistle Aphid)
Synonyms and other taxonomic changes
Aphis cirsii Linnaeus, 1758
Explanation of Names
Author: Linneus 1758.
Remarks
Introduced from Europe around 1956. This is an accidental introduction, in contrast with several intentional ones intended as biocontrols of non-native thistle, Cirsium arvense.