November 2007 " Chilli thrips were indentified on landscape roses in Houston. Chilli thrips have also been detected on a number of ornamental and vegetable plants in retail stores in Northeast and South Texas."

Even though it's from 2007, this link has pictures of infected/affected roses and it's fast to download.

Here is a link that might be useful: From Texas A&M

The last map I had seen had only two counties. This is really depressing for those of us who garden in a climate comparable to parts of north Texas (as well as for the folks in north Texas.)

Here is a link that might be useful: Eight Texas counties

Here's a 2006 report from the research arm of the USDA's Animal Plant Health Inspection Service (Plant Protection & Quarantine). The report is a brief pest risk assessment and includes a map showing the areas of the continental USA where the climate is likely to be able to support a permanent population of the insect.