Giantbupers, also known as David's foot-bellieds, is a genus of coleoptera. Adults are 3–4 cm long and 1–1.4 cm wide. Diurnal and nocturnal, preying on Lepidoptera and Diptera insects, is an important predatory predator of farmland pests. It also eats small mollusks such as snails and slugs. Distributed in Zhejiang, Fujian, Jiangxi, Guangdong and other places in China, it is an endemic species in China and belongs to the national second-level protected animal. It inhabits dead branches, loose soils or weeds.
The antennae are thin and long. The dorsal plate of the anterior thorax is heart-shaped, with a slightly concave anterior margin and a circular arc on both sides. The head , antennae , and feet are black , and the dorsal plates , side plates , and small shields of the thorax are bluish-purple. The elytra are oblong-ovate, with the broadest mid-posterior part and a concave lateral margin. The elytra are green and metallic, with a copperish sheen on the back half; some are light copper. Coleopterancts are mostly black. The abdomen is smooth, with pairs of notches on either side of the midline of each segment, and hairs on the ventral surface. The feet are slender, and the males have enlarged tarsal segments of the forefoot.
Biologically and ecologically learning is similar to labu nails. Adults are not good at flying and are mostly active on the surface. Both adults and larvae are agile. Adults, in particular, are insect walkers. Its adult and larvae have a strong ability to prey, especially snails, lepidopteran larvae and locusts. According to experimental observations, adult insects can prey on 2-4 snails or 2 East Asian flying locust adults a day. Therefore, the use of Shuobujia to control farmland pests has broad application prospects.