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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 » Macrosiphum
Photo#520552
Aphids on willow - Macrosiphum
Copyright © 2011 R. Berg

Aphids on willow - Macrosiphum
San Francisco, San Francisco County, California, USA
May 21, 2011
On undersides of leaves of small tree tentatively identified as Arroyo Willow, Salix lasiolepis, in Glen Canyon. These look similar to the green form of plain old rose aphids except that the juveniles have disproportionately sturdy-looking cornicles: large diameter and a cylindrical shape without tapering.

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Contributed by R. Berg on 25 May, 2011 - 10:15pm
Last updated 15 February, 2013 - 10:35am

Moved
Moved from Aphids.
… R. Berg, 3 June, 2011 - 12:16pm login or register to post comments

ID
Certainly Macrosiphum. The plant looks like Oemleria (Indian Plum), but it might be Salix (willow) of some kind. Very nice photo.
… Andrew Jensen, 3 June, 2011 - 11:40am login or register to post comments

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