Iridescent green chelicerae (jaws with fangs) are indicative of Phidippus genus. This is a large male specimen - 15mm. More at: http://www.cirrusimage.com/spider_Phidippus_clarus.htm
This large female spider was resident in a large orb web in a tree. There were perhaps a half-dozen male spiders attendant in ancillary webs. More: http://www.cirrusimage.com/Arachnid_marbled_orbweaver.htm