Among them East Asian element predominated over the other elements, making up 51.35 percent of the total species ,then Oriental element occupying 25.51%, Palaearctic 18.45% and Eurytopic only 2.26%.
这些种类主归属4种区系成分,其东亚成分占优势,占总数51.35%,东洋成分占25.51%,古北成分占18.45%,广布成分仅2.26%。