What kind of spider is this?

Black-backed Grass Spider

(Grassidae/Grass Spider) Female spider body length is 17-20mm, male is 14mm, the center of the cephalothorax is dark brown, and the lateral edges are broad It is yellow-brown in shape, with eight eyes arranged in 2 rows, each eye is equal in size, the upper jaw is dark brown, the center of the abdomen and back is dark brown or black with 7 white figure-eight stripes, there is a white spot on the left and right at the front, and the ventral side is yellowish brown, each The legs are yellowish-brown, with light brown distribution between the nodes. The male spider is smaller, and the markings are similar to those of the female spider. However, the male spider's legs are dark brown below the metatarsal section, the abdomen is narrow, and the lateral edges of the back are yellowish-brown longitudinal bands. This species is distributed in low and medium-altitude mountainous areas. It is common to build a three-dimensional wire mesh between branches and leaves. The mesh is large, messy and irregular, with dead leaves attached to the mesh and multiple funnel-shaped nests.