The double ridged longhorn beetle is a beetle belonging to the longhorn family. This beetle is distributed in Taiwan and China. The body length is 9.5-17.0 millimeters. The body is covered with extremely thick and dense light colored fuzz, ranging from light grass green to light blue, and decorated with black stripes, composed of a base color and black fuzz. The variation between light and black colors is significant, forming different spotted patterns, especially in elytra. The anterior chest and back panel are pale in color, with circular black spots on both sides of the central area. Each elytra has three large black spots, the first of which is located on the outer side of the base, including the shoulders; The second one is slightly lower, before the middle; Stretching inward wider, but not reaching the middle seam.