摘要
【目的】明确新疆优势种革蜱超微结构鉴别特征,以期准确鉴别媒介蜱。【方法】本研究以新疆疫区4种优势种革蜱——边缘革蜱D.marginatus、草原革蜱D.nuttalli、森林革蜱D.silvarum和银盾革蜱D.niveus为实验材料,在体视显微镜下观察并鉴定物种后,进行扫描电镜观察。【结果】银盾革蜱、森林革蜱、草原革蜱和边缘革蜱体躯大小、盾板珐琅彩存在差异;银盾革蜱和边缘革蜱的肢节Ⅳ(股节、胫节和后跗节)腹面都具有3个齿状突,而草原革蜱的3个齿状突位于胫节和后跗节,森林革蜱仅后跗节有3个齿状突。此外,这4种优势种革蜱须肢腹面内侧缘刚毛排列、爪垫长度与爪长度之间的比例等特征也存在明显差异。【结论】银盾革蜱、森林革蜱、草原革蜱及边缘革蜱以肢节Ⅳ腹面齿状突和气门板为鉴别特征,结合须肢腹面内侧缘刚毛排列、爪垫长度与爪长的比例等特征,可快速准确鉴别,对新疆地区蜱传疾病综合防控具有应用意义。
[ Aim] To determine the uhrastructural characteristics for diagnosis of dominant Dermacentor species, tick-borne vectors, in Xinjiang, northwestern China. [ Methods ] The uhrastructure and morphology of four dominant Dermacentor species, i. e., D. niveus, D. silvarum, D. nuttalli and D. marginatus, were observed by scanning electronic microscope on the basis of observation and indentification with stereo microscope. [ Results ] Differences existed in the idiosomal size and the enamel color of scutum among the four species. There are three odontoid processes on the ventral podomer 1V （femur, tibia and metatarsus） of D. niveus and D. marginatus, and the odontoid processes are present on both tibia and metatarsus of D. nuttalli, but only present on the metatarsus of D. silvarum. Notable differences were also found in the seta arrangement of ventral palpus＇ s medial margin, the length of claws, and the claw-pulvillus length ratios of the four dominant Dermacentor species. [ Conclusion ] The number and location of the odontoid processes on ventral podomer IV and the morphology of spiracular plate are diagnostic characteristics for the four Dermacentor species, and a rapid species identification could be made by combining these characteristics with the seta arrangement of ventral palpus, the claw length and the claw-pulvillus length ratio.
出处
《昆虫学报》
CAS
CSCD
北大核心
2016年第1期85-92,共8页
Acta Entomologica Sinica
基金
新疆自治区科技厅科支疆项目(2013911061)
关键词
革蜱
优势种
超微结构
形态学
扫描电子显微镜
新疆
Dermacentor
dominant species
uhrastructure
morphology
scanning electronic microscope
Xinjiang
