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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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TaxonomyBrowse
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Species Brachycaudus cardui - Thistle Aphid

Fat tan and black aphids on tansy - Brachycaudus cardui Fat tan and black aphids on tansy - Brachycaudus cardui Brachycaudus cardui Brachycaudus cardui Brachycaudus cardui Brachycaudus cardui?? - Brachycaudus cardui Brachycaudus cardui?? - Brachycaudus cardui Formica montana tending Brachycaudus cardui on Cirsium vulgare - Brachycaudus cardui
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 Brachycaudus
Species cardui (Thistle Aphid)
Synonyms and other taxonomic changes
Aphis cardui Linnaeus, 1758
Food
Some fruit trees and thistles.
Remarks
Introduced from Europe 1887