The small red ant, scientific name Solenopsis invicta, is a species of ant distinguishable by its reddish-brown to black coloration. These ants are small, measuring only a few millimeters in length. They exhibit a distinct morphological appearance with a mandibular groove on their head, a pedicel connecting the abdomen to the thorax, a black or reddish-brown gaster, and antennae with multiple segments.