Citronella ants get their name from the distinct citronella like scent they emit when crushed. Workers are about 1/8 – 3/8” long and are yellowish to brown in color. Citronella ants do not live inside, but may forage indoors in search of food. Outside, they nest under slabs, walkways, and decaying wood. Swarmers may emerge at any time but most often mid-summer to late fall.