What Beetle is this?

[JAC]

I found this little guy near a local bayou. I tried to identify it through various sites but to no avail.  It's very small (around .5 inches) and found in South Texas if that helps.

[Goliathus]

It's in the family Chrysomelidae, but I'm not familiar with what species this is.

[aspenentomology]

My best guess would be Plagiodera versicolora, but it is very punctate and yours looks more smooth, at least in this picture.