Spotting

I did use a flash, and no, this is the only picture I have.

Maybe Graphisurus fasciatus??? Not 100% sure! Important are the colors/markings of the antennae and legs and their segmentation and the body markings. The color of the beetle itself might vary a lot!
http://bugguide.net/node/view/67579/bgpa...
http://bugguide.net/node/view/7642/bgima...

Any closer picture?? Did you use flash?

Cerambycidae, most probably Lamiinae.
http://bugguide.net/node/view/14524/bgpa...