This is one of hundreds of thousands of ants that appeared suddenly and have propagated in a neighborhood of Williamson county, disrupting the community by moving into homes and vehicles. They are thought to have been introduced by transporting firewood.

http://www.myrmecos.net/2008/04/13/how-to-identify-the-argentine-ant-linepithema-humile/

'Clypeus broadly concave'

'mandibular teeth that are arranged as a series of small denticles interspersed with larger single teeth'

'lacks standing hairs on the dorsal surface of the mesosoma and on the first two segments of the gaster'

Linepithema humile species ID determined by Dr. Robert T. Puckett, Dr. Ed LeBrun and Dr. Gary Alpert.

This is one of hundreds of thousands of ants that appeared suddenly and have propagated in a neighborhood of Williamson county, disrupting the community by moving into homes and vehicles. They are thought to have been introduced by transporting firewood.

http://www.myrmecos.net/2008/04/13/how-to-identify-the-argentine-ant-linepithema-humile/

'Clypeus broadly concave'

'mandibular teeth that are arranged as a series of small denticles interspersed with larger single teeth'

'lacks standing hairs on the dorsal surface of the mesosoma and on the first two segments of the gaster'

Linepithema humile species ID determined by Dr. Robert T. Puckett, Dr. Ed LeBrun and Dr. Gary Alpert.