真长须螨属1新种(蜱螨亚纲:长须螨科)

A NEW SPECIES OF THE GENUS EVSTIGMAEU S BERLESE (ACARI:STIGMAEIDAE)

记述真长须螨属1新种;正一真长须螨,新种Euslig maeus zheng yii sp.nov.

The present paper deals with a new species of the genus Eustigmaeus Berlese collected on lichen. The type specimens are deposited in the Department of Environmental and Resources Biology,Fudan University,Shanghai. Eusligmaeus zheng y ii sp.nov. (figs 1-5)This new species is similar to E. kauaiensisSwift et al. 1985,but differs from the latter in the following characters: (1 )Lengthes of most dorsal setae in new species longer than that in E. kauaiensis. (2)Ratio ae/be = 0. 61 be/ce = 7. 05 in new species but ae/be = 0. 76,be/ce = 5. 92 in E. kauaiensis. (3)la>li in new species but Ia<li in E. kauaiensis. (4)m- m<n - n in new species but m - m = n - n in E. kauaiensis. (5)Difference of setae numbers on trochanters ,genua of leg Ⅰ-Ⅳ:trochanters genuaE. zhengyii sp. nov. 1-1-2-1 4-3-1-1E.kauaiensis 1-1-1-1 4-4-1-1Holotype ,Yandangshan (28°4'N, 121°1'E) ,Zhejiang Province,17. Ⅵ. 1992. Paratypes 7 ,same as holotype.