Bug experts, what could this be?

I've seen a really beautiful and strange insect around my neighborhood, in yards and by the park. It's about an inch long and is shaped like a big ant. It's a deep sapphire-blue/black with black wings. Sorry I have no picture, it's always gone by the time I get my camera.

The first time I saw it I thought it might be a queen ant due to its size and shape, but I've seen several now and I didn't think queen ants would be out and about that much. I went most of my life without ever seeing one and now I've seen this about five times. But I'm no expert.

Any suggestions where I could start looking up what it may be?

2007-10-08T10:51:50Z

BNP: possibly. I didn't get quite that close. Do they live in AZ?

Ock: I looked up mud dauber and that's also possible, we do have black widows here and I would be very happy for the presence of a natural predator!

Manx2007-10-08T10:41:52Z

Favorite Answer

It sounds like a dirt dauber. I'm not sure how it's spelled, but what you've just described sounds just like a dirt dauber. They build nests made out of mud and fill the nests with spiders to feed their babies. When I was little I used to try and catch them all the time because they were such a pretty color blue.

BNP2007-10-08T10:46:12Z

Was it this?
http://insects.ummz.lsa.umich.edu/sphecidwasps/chlorion.html