Can anyone identify a spider,beetroot coloured body with yellow circle, red legs it jumps , quite agressive?

Question

Can anyone identify a spider,beetroot coloured body with yellow circle, red legs it jumps , quite agressive?

Answer 1

By "it jumps", I think it is a species of jumping spider (family Salticidae).  However, there are over 5,000 species of jumping spider, and the color could be unique to the species.  

You can read more about them here;

http://bugguide.net/node/view/1962

http://en.wikipedia.org/wiki/Salticidae

Take a look at the pictures and see if that fits the general body plan of the spider you saw.

Answer 2

These might be helpful -

http://www.spideridentification.org/

http://www.badspiderbites.com/spider-ide...

http://www.aboutbugsbugsbugs.com/spiders...

http://www.pesticide.org/spiders.html