According to today's news release from AgNMore, the Rasberry ant, Nylanderia sp. near pubens, has now been found near Weslaco, TX in the lower Rio Grande valley. This marks another geographical jump probably aided by humans. The first area of infestation just south of Houston, has spread to approximately 12 adjacent counties. Last summer the ants were reported from San Antonio area, as well as Jim Hogg county. The Weslaco sighting, in south Hidalgo county, confirms that the ants have made it successfully to far south Texas.
For more information about the Rasberry crazy ant, see the page at the Center for Urban and Structural Entomology's website.