I need help in identification of this black-yellow wasp/bee. It has nearly the same size that of a hover fly. It makes nest in ground.

http://1.bp.blogspot.com/_lDfVXMCBuu0/Sn6_9OAcmdI/AAAAAAAADbo/QE0pmYhEz2w/s1600-h/wasp-2.jpg

Here is the picture
http://1.bp.blogspot.com/_lDfVXMCBuu0/Sn6_9OAcmdI/AAAAAAAADbo/QE0pmYhEz2w/s1600/wasp-2.jpg

The pictures aren't working. Try saving them to your hard drive then browsing when you click the paperclip icon to attach them.

Thanks for the guidance.

That makes it soooo much easier to identify your yellow jacket. Look at the different species at this link.

The Yellow Jacket Wasp .................................... (http://www.worsleyschool.net/science/files/yellow/jacket.html)

Thanks for the answer. As regard my knowledge Yellow Jacket live in colonies. While the above wasp/bee is some sort of solitary wasp/bee. More over it is not aggressive.

Yellow Jacket live in colonies.

Not necessarily. There are at least seventeen different species of wasp in North America that are called "Yellow Jackets." A few are solitary wasps.

The possibility that this wasp just happened to have the same coloration also exists.