巨螯螨属二新种记述(蜱螨亚纲,革螨股,巨螯螨科)  

ON TWO NEW SPECIES OF THE GENUS MACROCHELES (ACARI,GAMASINA,MACROCHELIDAE)

作　　者：马立名[1] 刘井元[2] 

机构地区：[1]吉林省地方病第一防治研究所,白城137000 [2]湖北省预防医学科学院寄生虫病研究所,武汉430079

出　　处：《动物分类学报》2003年第4期657-661,共5页Acta Zootaxonomica Sinica

摘　　要：记述巨螯螨属 2新种 :神农架巨螯螨Macrochelesshennongjiaensissp .nov .和金丝燕巨螯螨Macrochelescol localiaesp .nov .,模式标本存于军事医学科学院微生物流行病研究所医学昆虫标本馆。Two new species of the genus Macrocheles are described in the present paper.Type specimens are deposited in the Institute of Microbiology and Epidemiology,Academy of Military Medical Science,Beijing.1 Macrocheles shennongjiaensis sp.nov.(Figs.1-7)♀.Idiosoma 1115-1321(av.1199)μm long and 666-850(av.774)μm wide.Dorsal shield 1069-1092(av.1084)μm long and 609-643(av.624)μm wide;with many circular tubercles along margins,reticulated on surface.Dorsal shield bearing 28 pairs of setae,most of them brush-like,but F 2,D 3-D 6,I 1 and S 8 simple.F 1 closed to each other,F 2 slightly shorter than F 1,D 3 situated behind level of D 2.Sternal shield reticulated,with 3 pairs of simple setae and 2 pairs of pores. MSt and the 3rd pair of pores on metasternal shields.Genital shield reticulated,with 1 pair of simple setae.Ventro-anal shield reticulated,with 3 pairs of simple preanal setae and 3 perianal setae.Ad situated at level of anterior margin of anus,longer than PA. 3 pairs of sclerites between genital and ventro-anal shields.Metapodal shields 1 pair.Tectum,ventral view of gnathosoma,tarsus Ⅱ and Ⅳ shown in Figs.4-7. The new species is similar to Macrocheles tridentinus (G.et R.Canestrini,1882)and M.carinatus(Koch,1839),but in the new species F 2 slightly shorter than F 1,D 2 brush-shaped,ventro-anal shield narrower and longer,lateral projections of tectum complete;in M.tridentinus F 2 equal to F 1 in length,D 2 faintly pilose,ventro-anal shield broader and shorter;F 2 of M.carinatus distinctly shorter than F 1,ventro-anal shield broader and shorter,lateral projections of tectum bifurcated. Holotype ♀,paratypes 2♀♀,collected off Ochotona thibetana from Shennongjia(31°15′N, 109°56′E),Hubei Province,about 2900m,25 June 1990.2 Macrocheles collocaliae sp. nov.(Figs.8-14)♀.Idiosoma 942-965(av.954)μm long and 586-609(av.597)μm wide,dorsal and ventral cuticles rough,densely covered with curves and sharp denticles.All shields with reticulations composed of punctations.Dorsal shi

关 键 词：蜱螨亚纲 革螨股 巨螯螨科 巨螯螨属 新种 

分 类 号：Q969[生物学—昆虫学]