Bugs are distributed all over the world and can be seen almost everywhere. Like to eat all kinds of insects. The head is narrow, and there is a narrow neck structure behind the head, which is the characteristic of the undergraduate course. Body length 10 ~ 25mm (0.4 ~ 1 inch). The beak is short, three-jointed, arched, and merges into the longitudinal groove of the chest and abdomen to absorb body fluids from other animals. The body is black or dark brown, and some are brightly colored. Most of them live outdoors and prey on other insects, but some of them suck the blood of mammals, including humans, and spread diseases. Melanolestes picipes is an important species, which often bites around people's mouths, hence its name. Black, 12 mm long, common in rocks and bark, feeding on other insects.

Jiaxing is definitely there.

-Refer to Baidu Encyclopedia