Oat-Birdcherry Aphid - Rhopalosiphum padi

Bird Chery Oat Aphid

Moved from ID Request.

Good call, Derek. "Winged adults have black heads and thoraxes and green abdomens." Goofy common name, though :)
Thanks, Robert

… Robert Lord Zimlich, 5 November, 2012 - 10:36am

Not goofy at all :-P

Their primary host is bird cherry, with their secondary hosts being various grasses, especially oats and wheat.

… Natalie Hernandez, 5 November, 2012 - 11:23am

Oh, it's the lady with the pretty smile

Bird Cherry Oat Aphid sounds like a ceral :)) I like Oat-Birdcherry Aphid better With the cold weather, I'm photographing things that might otherwise be "targets of opportunity." I think this ID answers several of my unknown aphids.

… Robert Lord Zimlich, 5 November, 2012 - 11:41am

Probably.

This time of year lots of grain aphids are out. Mostly this one and the closely related corn-leaf aphid Rhopalosiphum maidis :) You can tell them apart by that last thin segment on the 6th antennal segment (it's longer on R. padi) and the shape of the cornicles. R. padi has a 45° at the end, but R. maidis has barrel-shaped cornicles.

… Natalie Hernandez, 5 November, 2012 - 11:52am

looks similar

to this one http://bugguide.net/node/view/707636

… Derek Uhey, 4 November, 2012 - 4:42pm