What kinda spider is this?
 

Wife found this after trimming the bushes today in the back yard (Minnesota).
When it opened up and started moving it was about 1.5" in diameter legs included.

Bleech.

http://forums.pelicanparts.com/uploa...1345242691.jpg
http://forums.pelicanparts.com/uploa...1345242714.jpg

Looks like a common orb weaver spider. (harmless)

but why does it have a radar dish on its back?

Anti collision device. Very useful when building a web ;)

cool in a kitchen terrarium. feed it flies.

flies that have a radioactive isotope.

cool, my bug would kick your spiders butt. SmileWavy

http://forums.pelicanparts.com/uploa...1345260449.jpg

We just got back from our friends house. As we were leaving my wife saw a spider about the size of my palm. So Richie gets some spider spray .........i think i could here the spider laughing.
Finally knocked him down and squished him.