下盾螨属一新亚种和龚氏钝革螨后若虫形态描述(蜱螨亚纲,厉螨科,寄螨科)

A NEW SUBSPECIES OF THE GENUS HYPOASPIS AND DESCRIPTIONOF DEUTONYMPH OF AMBLYGAMASUS GONGZHENGDAI BAI FROMNINGXIA, CHINA (ACARI, LAELAPIDAE, PARASITIDAE)

记述下盾螨属 Hypoaspis Canestrini,1885的1新亚种,柔弱下盾螨宁夏亚种Hypoaspis debilis ningxiaensis Bai,ssp. nov.和龚氏钝革螨 Amblygamasus gongzhengdai Bai,2010后若螨形态,标本分别采自银川市南郊地表柳叶腐植层及银川花卉市场的高山榕盆景土壤表层。模式标本保存于军事医学科学院微生物流行病研究所昆虫标本馆和宁夏回族自治区疾病预防控制中心。

A new subspecies of Hypoaspis Canestrini, 1885, H. debilis ningxiaensis Bai, ssp. nov. and deutonymph of Amblygamasus gongzhengdai Bai, 2010 are described. Specimens of the new subspecies were collected from Yinchuan City, Ningxia Hui Autonomous Region. Measurements are given in micron. Hypoaspis debilis ningxiaensis Bai, ssp. nov. （Figs 1-6） The new subspecies differs from the nominate subspecies Hypoaspis debilis debilis Ma, 1996 in： 1） the temporal margin of concave; 2） Ad lying behind the level of posterior margin of anus, the PA longer than Ad in anal plate; 3） the metapodal shield wedge-shapes or short clavite in shape; 4） the peritrematic plate central swollen. Holotype ♀, paratypes： 1♂, 5♀♀, by BAI Xue-Li collected off surface corrosion plant layer leaves, 9 June 2010, Yinchuan （38.5°N, 106.3°E）, Ningxia Hui Autonomous Region. The holotype and paratypes one male and three female are deposited in the Collection of the Medical Entomology of Institute of Microbiology and Epidemiology Academy of Military Medical Science, Beijing, China. Two female paratypes are deposited in the Ningxia Hui Autonomous Region Center for Disease Prevention and Control, Yinchuan, China. Etymology. The subspecie name is derived from the type locality Ningxia Hui Autonomous Region. Amblygamasus gongzhengdai Bai, 2010 （Figs 7-10） Deutonymph. Length 762 μm, width 429 μm. Two dorsal shields. Anterior dorsal shield with 18 pairs of setae, posterior dorsal shield with 30 pairs of setae, most dorsal setae long. Dorsal cuticle setae 58 pairs. Sternal shield bearing 4 pairs of setae. Anal shield oval, Ad lying at level of edge of anus, length 28 μm, PA length 29 μm. Ventral cuticle setae 37 pairs. Peritreme reaching between coxa Ⅰ and Ⅱ. Specimens. 2♀♀, 2♂♂ and 1 deutonymph, by BAI Xue-Li collected off Flower Market Banyan Ficus microcarpa bonsai soil surface, 28 Aug. 2010, from Yinchuan （38.5°N, 106.3°E） of Ningxia Hui Autonomous Region, China.