Barley worm is a new species. Barley worm is a super bread worm, which is a new variety bred by Tenebrio molitor and black powder insect. It is rare in the market, but common in van market, so the price of barley worm is more expensive than bread worm. Barley worm is formed by super wheat-skin worm, which is mainly distributed in Central and South America, West Indies and other places. It is also called super bread worm, super wheat-skin worm, etc. In recent years, it has been introduced from Southeast Asian countries. The largest mature larva is about 7 cm long, 3-4 times larger than Tenebrio molitor, and its output is 5 times that of Tenebrio molitor.