The medium sized ants (about 0.5 cm) are brown. It differs in the following features: workers' eyes are medium and consist of about 5 ommatidia along the longest axis, small for a kind (total body length of workers TL from 5.70 to 5.85 mm, head width HW from 0.96 to 0.99 mm, females are larger), chewing margin of mandibles with 5 teeth, body smooth and shiny. Antennae 12-segmented. Mandibles narrow and long, with clypeus not in contact when closed. The eyes of the females are located in the anterior lateral half of the head. The mandibles are attached in the anterolateral parts of the anterior surface of the head. Medial clypeal protrusion of the straight. The stalk between the breast and the abdomen consists of one segment (nodular petiolus ) with a rounded upper part. Abdomen with a strong constriction on the IV segment. Claws of hind legs simple, without teeth on their inner surface. Shins of hind legs with two spurs (one large crest-shaped and the other simple and shallow). The sting is developed. The species was first described in 1941 under the original name Trapeziopelta crawleyi Donisthorpe, 1941 , and its valid status was confirmed during an audit conducted in 2018 by Thai worldmecologists [1] .