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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) » Woolly Aphids and Gall-making Aphids (Eriosomatinae) » Eriosomatini » Eriosoma
Photo#199595
Aphidiidae 06a - Eriosoma
Copyright © 2008 Karl Volkman

Aphidiidae 06a - Eriosoma
Republic, Ferry County, Washington, USA
June 23, 2008
Mass of aphids in a distinctive mass of leaves

Images of this individual: tag all
Aphidiidae 06a - Eriosoma Aphididae 06b - Eriosoma
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Contributed by Karl Volkman on 9 July, 2008 - 7:13pm
Last updated 13 January, 2011 - 9:30pm

Moved
Moved from Woolly Aphids and Gall-making Aphids.
… Charley Eiseman, 13 January, 2011 - 9:30pm login or register to post comments

Moved
Moved from Aphids. I think there are several erisomatines (woolly aphids) that occur on elm. They may all be Eriosoma spp., but I'm not sure.
… Charley Eiseman, 8 December, 2009 - 3:14pm login or register to post comments

Plant...
...appears to elm (Ulmus). The only elm species listed in the PLANTS database as naturalized in Washington (there are no native species there) is Ulmus pumila" class="bb_url">Ulmus pumila, but these leaves look too large to be that. Given its location in a domestic yard, it could be a planted specimen of Red Elm (U. rubra) or American Elm (U. americana).
… John Pearson, 8 December, 2009 - 3:11pm login or register to post comments

 
Thanks John
I forgot to note the host plant was an elm, sorry! I can confirm that it isnt an U.americana as the only three in the county (that i know of) are in the side yard of the int. center. There are a number of this particular species in the area, most in yards but a number are "wild", and they do appear to match U. rubra more closely then U. pumila.
… Karl Volkman, 8 December, 2009 - 3:25pm login or register to post comments

 
Hitchcock and Cronquist (1973)...
...in the Flora of the Pacific Northwest: an Illustrated Manual (known for its brevity in abridging a related multi-volume set) succinctly state the status of Ulmus there as "various cultivated species, sometimes persistent around abandoned homes and mistakable for native." We could also add occupied homes and an international center. ;)
… John Pearson, 8 December, 2009 - 3:40pm login or register to post comments

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