寄螨亚科6已知种补充描述（蜱螨亚纲：革螨股）  

Supplemental Descriptions of Six Known Species of the Subfamily Parasitinae （Acari：Gamasina）

作　　者：马立名[1] 

机构地区：[1]中国鼠疫布氏菌病预防控制基地,白城市137000

出　　处：《蛛形学报》2010年第1期20-25,共6页Acta Arachnologica Sinica

摘　　要：对短毛寄螨Parasitus brachychaetus Ma，1986；王氏寄螨Parasitus wangdunqingi Ma,1995；二刺寄螨Parasitus bispinatus Ma，1996；北方糙革螨Trachygamasus borealis Ma et Wang，1996；三尖常革螨Vulgarogamasus trifidus Ma,1987和甘肃常革螨Vulgarogamasus gansuensis Ma，1987进行了补充描述。1. Parasitus brachychaetus Ma, 1986 （Figs. 1-7） （Redescription）. Length 942μm, width 575 μm. Anterior dorsal shield bearing about 20 pairs of setae, M2, F1, D1 and D3 pilose distally, remains simple. Posterior dorsal shield bearing about 26 pairs of setae, pilose distally or simple. Sternal region with 1 pair of triangular sclerites. St, bifurcate, on small shields. Genital region shown in fig. 2. Ventro-anal shield setae simple, but 1 pair of which at posterior part pilose distally. Ad situated at level of posterior margin of anus, longer than anus, PA longer than Ad, pilose distally. Tectum 3-pronged. Movable digit of chela tridentate, fixed digit with a row of small denticles. Setae al on palpfemur bifurcate, all and a12 on palpgenu spoon-shaped. Tarsus Ⅱ-Ⅳ with 4 distal spines respectively. Specimen 1 ♀ , offMarmota himalayana （Hodgson）, from Oula （34° 06′ N, 101° 43′ E）, Gansu Province, Aug. 5, 1960. 2. Parasitus wangdunqingi Ma, 1995 （Figs. 8-11） （Supplemental character）. The female with 4 blunt spines in the genital cavity, but some spines tridentate in shape, some spines increased or decreased in numbers. Specimens 4 ♀♀ , ex humus soil, from Baicheng （45° 37′ N,122° 49′ E）,Jilin Province, Apr. 1992. 3. Parasitus bispinatus Ma, 1996 （Figs. 12-14） Larva. Idiosoma 340-440 （av. 373） μm long, 200-280 （av. 240） μm wide. Dorsal setae 18 pairs. Venter with 6 pairs ofsetae except perianal setae. Ad long, PA still longer. Stigma and peritreme absent. Movable digit of chela tridentate. Legs 3 pairs. Specimens 4 ♀♀ , 2♂♂, 8 deutonymphs, 6 protonymphs and 3 larvae, ex tree hole of poplar, from Baicheng （45° 37′ N, 122° 4′ E）, Jilin Province, Aug. 14, 1994. 4. Trachygamasus borealis Ma et Wang, 1996 （Figs. 15-19） Adult （Supplemental characters）. In female, venter with 1 pair of minute setae near to postero-lateral angles of genital shield; ventro-anal shield with 6 pairs of ventral setae, last a pair of which brush-like;

关 键 词：蜱螨亚纲 革螨股 寄螨科 寄螨属 糙革螨属 常革螨属 

分 类 号：Q969.91[生物学—昆虫学]