美绥螨属一新种(蜱螨亚纲,美绥螨科)  

A NEW SPECIES OF THE GENUS AMERSEIUS FROM QINGHAI,CHINA(ACARI,AMEROSEIIDAE)

作　　者：马英[1] 

机构地区：[1]青海省地方病预防控制所,西宁811602

出　　处：《动物分类学报》2008年第4期748-750,共3页Acta Zootaxonomica Sinica

摘　　要：记述美绥螨科Ameroseiidae美绥螨属Ameroseius Berlese,19031新种,青海美绥螨Ameroseius qinghaiensis sp.nov.,新种与曲美绥螨Ameroseius curvatus Gu,Wang et Bai,1989近似,但有明显区别。模式标本采自青海省湟中县总寨乡褐家鼠Rattus norvegicus和长尾仓鼠Cricetulus longicaudatus体上,保存于青海省地方病预防控制所。This paper reports a new species belonging to the genus Ameroseius Berlese, 1903 from Huangzhong County, Qinghai Province, China. All measurements are given in microns. The type specimens are deposited in the Qinghai Institute for Endemic Disease Prevention and Control. Ameroseius qinghaiensis sp. nov. （Figs. 1-5 ） Dorsal shield 29 pairs long setae. Sternal shield deep concave anterior margin and straight posterior margin. St3 and Mst on cuticle behind the shield. With 2 pairs of short setae between gentital and ventro-anal shields. Peritrematic plate wider and peritreme reaching to anterior part of CX1. Fixed digit of chela has 4 dentides. The new spedes is very similar to Ameroseius curvatus Gu, Wang et Bai, 1989, but in the new species dorsal shield setae very long, D7 133, M11 114. Comiculi divided distally into 3 processes. The anterior margion of Sternal shield has deep concave, st1 30, st2 27, Mst on cutide behind the stemal shield. Venrto-anal shield long 138, wide 159 and far away to genital plate. The length of each leg is long and leg Ⅳ is longest. The different features of the latter： dorsal shield seine short, Dy 82, M11 76. Corniculi divided distally into 2 processes. The anterior margion of Sternal shield has litter concave, st1 21, st2 19, Mst3 lied a small plate behind the sternal shield. Venrto-anal shield long 115, wide 128 and near to genital plate. Leg 1 is longest. Holotype ♀, collected off Rattus norvegicus and paratypes 3♀♀ collected off Cricetulus longicaudatus, 16 July 2002, Huangzhong County （36°27＇N, 101°30＇E）, Qinghai Province, China. Etymology. The new species is named region which was first collected.

关 键 词：蜱螨亚纲 美绥螨科 美绥螨属 新种 

分 类 号：Q969[生物学—昆虫学]