The dialect is called spanker, and the Chinese herbal medicine is called aspongopus, also known as smelly elder sister. It belongs to Hemiptera and stinkbug family, and is mainly used for treating liver and stomach gas pain and waist and knee pain. It is a flying blue-black beetle, the size of a nail and the shape of a water turtle. In spring and summer, crawling on the

stems and leaves of crops to suck the slurry, and if you don't pay attention to it, you will release a strange and smelly gas, which will make people stay away, thus falling into the notoriety of "fart bug" or "spanker". Fagopyrum parvum contains aspongopus oil. Once it is cooked, it is a delicious medicinal food, < P > which can cure diseases and prolong life. Therefore, it has won the reputation of "Aspongopus parvum". ?

When attacked, fart bugs can release a large amount of poisonous fog from the top of the abdomen and spray it at the attacker. In order to produce these pulse bombs, fart bugs have a gland that is specially used to store different chemicals. When attacked, they will mix these different chemicals in a pair of combustion chambers. The poisonous fog produced in the combustion chamber is released through the exhaust hole in the exoskeleton, and even accompanied by sound when the poisonous fog is released. Some farting bugs in Africa also have an axial nozzle, and the poisonous fog bombs released by this nozzle are more accurate and aggressive.

It is 1.7-2.5 cm long, dark brown in color, with a pair of tiny orange-yellow or orange-brown longitudinal spots on the back of the head, orange-yellow or orange-brown at the end of the last section of the antenna, and orange-yellow or orange-brown spots on the second and third sections of some individuals, with a sharp spike on the outer edge of the chest backboard and a transverse arc-shaped orange-yellow or orange-brown fine spot in the center. In particular, the basal half of the tibiofibular joint is flat and leaf-shaped, which is the most important distinguishing feature of this species, and there are many yellow spots on the ventral surface of the body; The biggest feature is that the tibial segment of the hind foot presents a leaf shape.

The first half of the upper wing is leathery, and the membranous part overlaps with the ventral part to form a three-cone shape, with a well-developed sucking mouthparts. The eggs are cylindrical, with a lid above them, which are often arranged neatly on leaves, and the terrestrial stink bug has well-developed short whip antennae. Most aquatic stink bugs have sickle-shaped forelegs; The middle and lower levels of the amphibious stink bug,