Rice long-shouldered spinous bug and short-shouldered spinous bug

The scientific names of Clketustrigonus (Thunberg) and Jing C.pugnator belong to Hemiptera and Pentatomidae. Distributed in the Yangtze River Basin, Jiangsu, Henan, Yunnan, Guizhou and other provinces.

Host rice, amaranth, thorn wide, lotus seed grass, Schizonepeta tenuifolia, grass grape, corn, soybean and so on.

Damage characteristics, nymphs suck rice and other juices or damage grass and grape berries.

The front half of the anterior chest dorsal plate is light in color, and the side angle extends to both sides in the shape of a fine thorn, not upward, black, and the white spot of the corner wing chamber in the leather piece is clear. The egg is subrhomboid, colostrum white, and then gradually yellow and translucent. The last instar nymph is yellowish brown, there are small black lines on the back of the abdomen, the lateral angle of the anterior chest dorsal plate extends backward and outward into a needle, and the wing bud reaches the posterior edge of the third ventral segment.

The living habits of the Yangtze River valley are 2mi 3 generations a year, overwintering as adults in litter or withered grass, and begin to lay eggs from March to April the following year, and the eggs are mostly laid on leaves, ears or stems.