Adults are 40 ~ 44 mm long, black and shiny, with dense hairs locally. The head is slightly wider than the base of the middle thoracic backboard, and there are 1 yellowish brown spots on the front edge of the head and the top of the forehead. The compound eye is taupe and the single eye is amber. The rebound in the chest is shorter and slightly more prominent than the rebound in the chest. The X-shaped protrusion on the back plate of the middle chest is very obvious, reddish brown, and there are 1 dark lines in the front corner. The lateral margin of the abdominal segment is yellow-brown, and the dorsal flap covers all the vocal organs, which is sauce-brown. Abdominal flap is tongue-shaped with reddish-brown edge. The protruding lines of the front foot and the back of the leg joints are reddish brown, there are sharp thorns on the leg joints, and the veins of the middle and rear legs are yellowish brown. Before and after laying eggs, the branches and wings of adults are transparent and the veins are yellow-brown. The vocal organs of male insects are located in the first and second abdomen, while female insects have no vocal organs, but one auditory organ. The egg is 2.4 mm long, oval, slightly curved, milky white and shiny. The last instar of nymph is about 35 mm, which looks like an adult. Larvae is soft, white or yellow-white, and then becomes yellowish brown with winged buds; The forehead is obviously enlarged, the tentacles and beak are developed, and there is no compound eye. Compound eye has 1 monocular. The rebound in the chest is very big. The forefoot and leg joints are well developed and the teeth are suitable for digging. In old age, the body is hard, the front chest backboard shrinks, the middle chest backboard becomes bigger, there is an molting line from the top of the head to the center of the back chest backboard, the abdomen shrinks, and the wing buds are developed, reaching the center of the abdomen when mature.