下盾螨属一新种──（蜱螨亚纲：厉螨科）

本文记述下盾螨新种Ｈｙｏａｓｐｉｓｓｏｒｅｃｉｓｓｐ．ｎｏｖ,并讨论与近似种Ｈ．ＨｒｙｄｉＳａｍｓｉｎａｋ１９６１的鉴别特征。模式标本采自青海互助土族自治县的暗色ＳｏｒｅｘｓｉｎａｌｉｓＴｈｏｍａｓ,１９１２体上。文内量度单位均为μｍ,标本存放在青海省地方病防治研究所,西宁。

A NEW SPECIES OF THE GENUS HYPOASPIS(ACARI: LAELAPIDAE)

ypespis soreds sp. nov. (Figs. 1-4)The new species resembles Hypespis hrydi Samsinak, 1961, but differs from the latter in the following characters: (l ) Idiosoma measuring 640 X 450, the dorsal plate coveringmost of the dorsum, with 39 pairs of setae ;(2) the digitus fixus with 2 large teeth, withoutsmall teeth, while the latter species with 2 large teeth and a few small teeth; (3) the firstpair lyriform Pores of the sternal plate transverely lying between the St1, while those in thelatter species lying inside the St1 somewhat backward;(4) the venter with 10 pairs of setae,the posterior 4 pairs rather thick and spinishaped, whereas the latter species with only 7pairs of setae; (5) in the new species, distance between genitoventral plate and anal plateshorter than the length of anal plate, while in latter species the distance longer than thelength of anal plate.Holotype collected off Sores smalls Thomas, on Jul. 10, 1983, from Huzhu County(36"50'N, 102"28' E ), 4 paratyps collected off Sorex suaveolens Paiias, on Nov. 2, 1992,from Huangzhong County (36"27'N, 101q30'E). The types are deposited in the QinghaiProvince institute of Endemic disease Control.