Both the male and female of this species are about a half inch long (12 mm) as adults. The immature male shown in Photos A-D was about 1/4 inch long, as can be seen in relation to the Red Oak acorn in image (C,D). The striking metallic coloration of is fangs (chelicerae) and the three white marks on its abdomen identify this species (A,B,C,D). A young specimen shown with a fly was photographed, and identified with the help of BugGuide, in late September 2014 (F). These spiders jump their prey, as their name suggests, but they also can spin silk and will use a drag line when jumping. The two largest eyes give them excellent binocular vision, according to some experts the best vision of all spiders.