Venusta Orchard Orbweaver Spider

In both genders, the carapace is yellowish-green with a thin, dark green or black stripe down the center and also along the sides. The abdomen is an elongated oval that is at least twice as long as it is wide; it is much smaller in adult males than it is in adult females. The front end of the abdomen is rounded and projects up and over the cephalothorax. Abdominal coloration is silvery-white with a dark line in the middle, from which four pairs of more-or-less distinct bars branch to the side. There are also shimmery green, yellow-gold, and orange markings on the sides. On the underside of the abdomen, there may be two bright orange-red or copper colored triangles (note that this character seems to be quite variable, with some specimens having them and some not; perhaps it has to do with age or geographic variation?).
http://www.spiders.us/species/leucauge-venusta/