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Unknown aphids - Aphis

Unknown aphids - Aphis
Toronto, Ontario, Canada
July 20, 2007

Images of this individual: tag all
Unknown aphids - Aphis Unknown aphids

Moved from Aphids.


The prickles and grooved stem are suggestive of raspberry (Rubus), do you recall? Do you have a wider view of the plant?

Wider view coming
I posted this image in 2007, so I definitely do not recall, but this image was cropped and I have another wider shot that might help in a plant ID. I'll post them now.

Opposite, simple leaves... not like any Rubus I know. I hope John recognizes it.

The larva, though, is one of the aphid-eating syrphids, subfamily Syrphinae--similar to this one:

Charley is right about the opposite leaves - strike raspberry. I pored through manuals searching for plants with prickly, ridged stems and opposite leaves that are slightly joined at their bases, with prickles on the underside midvein, and with axillary buds...and found a good-fitting candidate in Teasel (Dipsacus fullonum). The flowering head is quite distinctive (see the hyperlinked PLANTS gallery) - did you happen to see that large, thistle-like structure in the field?

And they come in all sizes! Hope you get an ID on these.

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