The tiny insects, named after Texas exterminator Tom Rasberry who first reported them in 2002, are infesting properties of many homeowners, the Houston Chronicle reported Thursday.

"They crawl through the eaves of the house and go into the bathroom. You know what it's like to sit down on the commode with crazy ants running everywhere?" said Patsy Morphew of Pearland, Texas.

Experts don't know where the ants came from but the little critters are quickly expanding their domain.

The Chronicle said Rasberry ants are unlikely to sting, but pose a threat to plants and electrical equipment.

"This is the most difficult insect I've ever come across," Rasberry said.