Found these yesterday on lupine plant that is going to seed. They've grown already! Obviously true-bug nymphs. Green bodies with black tail-coat markings. Sorry picture so fuzzy . . . it was the best of 5 shots! Western oregon foothills.
CLOSED: green & black tuxedo? bug nymph on lupine plant
Family Miridae; adults look somewhat like tarnished plant bugs - http://thelifeofyourtime.files.wordpress.com/2011/11/dscf4473.jpg
Thanks flapdoodle! The adults check out as tarnished plant bug, but the nymphs don't match photos of tarnished plant bug nymphs . . . something else in Miridae family, maybe?
Yes, the nymphs look more like mirids to me than anything else at the moment.