Atlas japyx atlas (scientific name: Atlas japyx atlas) is an arthropod found in Xiangcheng County, Sichuan Province, the People's Republic of China. It is the only species of the genus Atlas japyx in the family Atlas japyx of the order Dicer. At the time of discovery, it was the largest known dichopod insect in the world at that time. This species belongs to the species of the Diceridae family. The main characteristics are wingless, eyeless, slender body shape, multi-segmented filamentous antennae, and a pair of segmented tail whiskers or unsegmented tail hairpins. They generally live in decayed leaves and branches on the soil surface, under fallen trees, in rotten tree trunks, and in crevices between rocks. This species is the largest group of insects of the order Dicera, with an average body length of 47 mm. Collected from Xiangcheng County, Sichuan in 1982.
The eight-shaped body of the giant bug is long and thick, with an average body length of 46.99 mm. The widest point is generally in the second segment of the abdomen, with an average width of 6.26 mm. The head and feet are yellow, the back of the thorax and abdomen ~ 7th segment is gray, and the ventral surface is yellow, the back of segments 8 and 9 is russet, and the ventral surface is yellow, and the 10th segment and the tail are dark brown. The antennae have no sensory hairs, the upper jaw has four teeth, and the inner leaf of the lower jaw has 5 lobes, which is comb-shaped. There are 3 pairs of chest valves.
