恙螨科二新种记述(蜱螨亚纲:恙螨科)  

TWO NEW SPECIES OF THE FAMILY TROMBICULIDAE FROM QINGHAI PROVINCE, CHINA (ACARI:TROMBICULIDAE)

作　　者：马英[1] 杨锡正[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》2002年第4期740-744,共5页Acta Zootaxonomica Sinica

摘　　要：描述恙螨科Trombiculidae 2新种 :多毛恙螨属的湖东多毛恙螨Multisetosahudongensissp .nov .和新恙螨属的河湟新恙螨Neotrombiculahehuangensissp .nov .,标本均存放在青海省地方病预防控制所。This paper reports two new species of the family Trombiculidae from the region in the east of Qinghai Province. All measurements are given in micrometers. All specimens are deposited in the Qinghai Institute for Endemic Disease Prevention and Control.1 Multisetosa hudongensis sp. nov. (Figs. 1 4) Body white when alive. Idiosoma engorged, length 697 5?μm, width 420?μm, unengorged length 320?μm, width 192 5?μm. Gnathosoma: Galeala branched. Palpal seta formula B B Bbb/7B. Palpal claw 5 pronged. Chelostyle with both 3 4 dorsal tooth and 4 5 ventral dents. Palptibial seta and palpgenuala seta with some short basal barbs. Scutum semicircle in shaped. AM>AL>PL. PLs/SB. Sensilla filiform and more long. Eyes 2+2. Ocular setae 4 10 in number. In the bases of the idiosomal setae lack small seta platelets. Dorsal setae 176 194 in number, arranged irregularly. Sternal setae 0+2. Ventral setae 134 153 in number, NDV=329(310 347). Coxal setae 2.1.1. Legs: I=333 8(327 5 340), Ⅱ=315(305 325),Ⅲ=357 5(345 370), IP=977 5 1?035. SIF=7B B 5 2111 0000. \; This new species is similar to M. ochotonae Wen et Shao, 1984, but differs from the latter: 1) fp=B B Bbb/7B,palpal claw 5 pronged, Chs=3 4/4 5; 2) Idiosomal setae bases all lack seta plateles; 3) sensilla nude, AP\-1=25; 4) IP=977 5 1?035.\; Holotype larva and 30 paratypes are taken from Meriones meridianus on 27 Aug. 1983 from Minghe County, 3 paratypes are taken from Cricetulus Longicaudatus on 18 Apr. 1983 from Huangzhong County, 1 paratype is collected off Apodemus speciosus on 12 Jun.1983 from Xunhua County, 5 paratypes were collected from Cricetulus longicaudatus on Jun. 3, 1983 from Xunhua County, Qinghai Province. 2 Neotrombicula hehuangensis sp. nov. (Figs. 5 8) Body orange in colour, elliptical when alive. Engorged idiosoma 560 in length and 420 in breadth. SIF=7Bs N 3 3111 1000. Galeal seta nude. Palpal setal formula B B NNB. Scutal semicircle in shaped and with semicicular

关 键 词：恙螨科 新种记述 蜱螨亚纲 多毛恙螨属 新恙螨属 

分 类 号：Q969.91[生物学—昆虫学]