Dr. Lareau, an emergency medicine physician at Carilion Franklin Memorial Hospital in Virginia, had seen these marks once or twice before on patients. She knew what had caused them. They were from chiggers, a species of tiny, reddish-brown mites able to leave bites that remain itchy for days or weeks.
Source: wiktionary
—He's not black, Stacia Jacobs who smelled like pee said. — He's yellow and black. He's a chigger. Do you know what a chigger is? It's a chink and a nigger.