Mexiupet   Douchong is native to the western United States (Arizona, etc.), granti is a general in ancient America, so the United States also has an alias" White General's Pocket Worm". The recorded size is about 3.5-8 cm. The whole body color is from gray-white to light yellow. The chest horn also has hairs characteristic of halberd. The elytra are scattered with irregular spots. The larval stage is 2 to 3 years old. The most easily distinguishable place from Meidong Baidou is that the body color is whiter, the Meixi chest horn is longer than the head horn, and the Meidong is that the head horn is longer or the same length than the chest horn.