The longhorn beetle is a general term for insects in the polyphagous suborder of the longhorn family, with a body length of 40-80 millimeters. Gray brown or gray black, with short brownish yellow hairs covering the elytra and entire body. There is a deep groove in the center between the antennae and the two compound eyes, which extends all the way to the top of the head and is deeper at the top of the head. The antennae are almost black. About one and a half times the size of the body, with a notch in the first section; The first section is thick and cylindrical, with a slightly outward protruding rear edge; The third section is relatively long, approximately equal to the sum of the fourth and fifth sections; Sections 7-10 are rod-shaped, with no flat edges, protrusions, or sharp edges on the outer side. The back of the anterior thoracic joint has irregular horizontal wrinkles, with round wrinkles on both sides but no lateral spikes.