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首页> 外文期刊>Journal of Parasitology >REDESCRIPTION OF DERMACENTOR EVERESTIANUS HIRST (ACARI: IXODIDAE), A PARASITE OF MAMMALS IN MOUNTAINS OF CHINA AND NEPAL WITH SYNONYMIZATION OF D. ABAENSIS TENG AND D. BIRULAI OLENEV
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REDESCRIPTION OF DERMACENTOR EVERESTIANUS HIRST (ACARI: IXODIDAE), A PARASITE OF MAMMALS IN MOUNTAINS OF CHINA AND NEPAL WITH SYNONYMIZATION OF D. ABAENSIS TENG AND D. BIRULAI OLENEV

机译：ABA和D.ABAENSIS TENG和D.BIRULAI OLENEV的异化对中国和尼泊尔山上哺乳动物的寄生虫Everestianus HIRST（ACARI：IXODIDAE）的描述

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Examination of extensive Dermacentor Koch, 1844 holdings stored in several major tick collections allowed us to re-evaluate the taxonomic content of Dermacentor everestianus Hirst, 1926 and redescribe all of its parasitic stages in detail for the first time. Examination of the type specimens of Dermacentor abaensis Teng, 1963, a species treated as valid by most workers, and Dermacentor birulai Olenev, 1927, a species some recent authors considered as valid, led us to the conclusion that they are junior synonyms of D. everestianus. The relation of D. everestianus with some other species in the genus is questionable and warrants further studies. From possibly sympatric Dermacentor species, the adults of D. everestianus can be distinguished by the following combination of characters: intensive ivory colored ornamentation of conscutum and scutum, absence of brown patches on lateral fields of conscutum in the male, long and narrow dorsal prolongation of spiracular plates, short cornua, short dorsal spur on trochanter I, and absence of large ventral spur on distal ends of genua and tibiae II-IV. Nymphs of D. everestianus can be distinguished by numerous setae on alloscutum (>48 pairs), large spiracular plates with their longitudinal diameter exceeding that of sclerotized ring around anal valves, moderate lateral projections of basis capituli with blunt apices situated slightly posterior to the midlength of basis capituli dorsally, relatively large auriculae, relatively short, narrowly rounded at apices spurs on coxae I with internal spur being shorter than external and moderate triangular spur on coxae IV; while larvae can surprisingly easily be distinguished from those of other species found in the region by greatly elongated posterior portion of scutum where eyes are situated just posterior to the midlength of scutum. So far, D. everestianus is found only in China and Nepal, where the adults were collected from domestic and wild ungulates while the immature stages were recorded from lagomorphs and rodents.
机译：对广泛存放在几个主要tick子收藏中的1844年Dermacentor Koch藏品的检查，使我们得以重新评估1926年Dermacentor everestianus Hirst的分类学含量，并首次重新详细描述了其所有寄生阶段。对大多数工人视为有效的物种Dermacentor abaensis Teng（1963）和一些新近作者认为有效的物种Dermacentor birulai Olenev（1927）的类型标本的检查使我们得出结论，它们是D的初级同义词。珠穆朗玛峰。 Everestianus菌与该属中其他物种的关系值得怀疑，值得进一步研究。从可能同胞的Dermacentor物种中，D。everestianus的成虫可以通过以下特征组合加以区分：结膜和盾皮的密集象牙色装饰，男性的结膜外侧区域没有棕色斑块，背侧长而窄椎间盘突出，短角膜，大转子I短背刺，以及在Genua和胫骨II-IV远端没有大腹侧刺。 Everestianus的若虫的特征在于异位皮上有许多刚毛（> 48对），大的螺旋形碟片，其纵向直径超过了肛门瓣周围的硬化环的直径，基部的中度侧向投射，钝顶在中间长度稍后背基部头足，相对较大的耳廓，相对较短，在co I的顶端刺上呈圆形，内部刺短于在ⅣIV上的外部和中等三角形刺;幼虫可以很容易地与在该区域发现的其他物种的幼虫区分开来，其特点是延展的后盾部分大大加长，而眼的位置恰好在后盾的中段之后。到目前为止，仅在中国和尼泊尔发现了珠穆琅玛石D，那里的成虫是从家养的和有蹄类的有蹄类动物中采集的，而未成熟阶段则是从象形文字和啮齿动物中记录的。

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