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%.
些种类主要归属4种
系成
,其中东亚成
势,
总数的51.35%,东洋成
25.51%,古北成
18.45%,广布成
仅2.26%。