Except in winter, there is a chance to find adults coming to feed among aphids outdoors. This species is very common in distribution, but rarely gathers in groups. In addition, people also call them flower elder sisters.
Distributed in some provinces and regions in Northeast my country, North China, Central China, Northwest China, East China and Southwest China; Beijing, Liaoning, Jilin, Heilongjiang, Hebei, Shandong, Shanxi, Henan, Shaanxi, Jiangsu, Zhejiang, Shanghai, It is found in Hubei, Hunan, Jiangxi, Fujian, Guangdong, Sichuan, Yunnan, Qinghai, Xinjiang, Tibet, Inner Mongolia and other places, and is commonly found in farmland, forests, gardens, orchards, etc. It is also recorded in Mongolia, North Korea, Japan, the former Soviet Union, India and Europe.
The adult body length is 5.2-6.5 mm and the width is 4-5.6 mm. The body is oval, with an arched back and a scoop shape. The head is black, the compound eyes are black, and there is a light yellow dot on each of the inner recesses. Antennae brown. Mouthparts black. The upper side is yellow. The front and back of the chest are black, and there is a large, nearly square, light yellow patch on each of the front and upper corners. Scutum black. The elytra are red or orange-yellow, with a total of 7 black spots on both sides; the base of the wing has a triangular white patch on both sides of the small scute. The body belly and feet are black.
Multiple generations occur every year. They spend the winter as adults and emerge as hibernators in April of the following year. Eggs are laid on aphid-containing plant hosts. Both adults and larvae feed on a variety of aphids, psyllids, etc. They are beneficial insects and should be protected.
