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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » True Bugs, Cicadas, Hoppers, Aphids and Allies (Hemiptera) » Plant-parasitic Hemipterans (Sternorrhyncha) » Aphidoidea » Aphids (Aphididae) » Aphidinae » Macrosiphini » Brachycaudus » Thistle Aphid (Brachycaudus cardui)
Photo#1041681
Brachycaudus cardui?? - Brachycaudus cardui
Copyright © 2015 Libby & Rick Avis

Brachycaudus cardui?? - Brachycaudus cardui
Port Alberni, Vancouver Island, British Columbia, Canada
June 30, 2010

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Brachycaudus cardui?? - Brachycaudus cardui Brachycaudus cardui?? - Brachycaudus cardui
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Contributed by Libby & Rick Avis on 20 February, 2015 - 6:09pm
Last updated 24 September, 2020 - 3:36pm

Moved
Moved from Aphids.
… Natalie Hernandez, 24 September, 2020 - 3:36pm login or register to post comments

Can't tell you much from this picture.
It is possible that B. cardui would host on some thistles but only certain genera, I don't know what type of thistle this is, do you? Also, there are characters that just cannot be seen unless you're zoomed in 120X that I would need to confirm that genus. Aphid identification is extremely complicated.
… Natalie Hernandez, 25 February, 2015 - 12:47pm login or register to post comments

 
Found on in our yard
on Cirsium vulgare (Bull Thistle). We also have a lot of old fruit trees - apple, plum, pear, cherry - and understand that this species uses both thistles and prunus species as hosts, which was one reason why we wondered about this as a possible ID. Also on the BC list and looked reasonably close to photos on the web, although we realise that's not necessarily reliable!
… Libby & Rick Avis, 25 February, 2015 - 8:01pm login or register to post comments

 
Yeah it fits.
They are heteroecious (alternate plant hosts) and those are their hosts. It does look like one, but aphids can be tricky sometimes. So its likely it is B. cardui but to be positive antennae and the cauda need to be looked at.
… Natalie Hernandez, 26 February, 2015 - 2:40pm login or register to post comments

 
Ok - thanks!
L.
… Libby & Rick Avis, 1 March, 2015 - 5:41pm login or register to post comments

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