微红纤恙螨与地里纤恙螨的形态学比较  

Morphological Comparison on Leptotrombidium rubellum and Leptotrombidium deliense

作　　者：林浩 董文鸽 宋文宇 邹云集 范蓉 郭宪国 Lin Hao;Dong Wenge;Song Wenyu;Zou Yunji;Fan Rong;Guo Xianguo(Institute of Pathogens and Vectors, Dali University, Dali, Yunnan 671000, China;Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali, Yunnan 671000, China)

机构地区：[1]大理大学病原与媒介生物研究所,云南大理671000 [2]云南省自然疫源性疾病防控技术重点实验室,云南大理671000

出　　处：《大理大学学报》2016年第12期62-66,共5页Journal of Dali University

基　　金：国家自然科学基金资助项目(81460313)

摘　　要：目的:比较微红纤恙螨和地里纤恙螨这两种近缘螨种的形态学差异。方法:从已经鉴定确认的微红纤恙螨和地里纤恙螨的幼虫标本中,选择结构清晰的100只标本,在显微镜下观察和测量其形态结构,对比分析两种近缘恙螨的形态学差异。所比较的两种恙螨的幼虫标本均采自黄胸鼠体表。结果:微红纤恙螨的背板近似正方形且SB<AP,地里纤恙螨的背板近似长方形且SB>AP,两者间差异均有统计学意义(P<0.01)。地里纤恙螨的SD、SB值范围较宽,其SD、SD宽/长、SB、PSB、PW/AP、PW均值都略大于微红纤恙螨(P<0.05)。结论:两种恙螨形态差别很小,微红纤恙螨的SB<AP,地里纤恙螨的SB>AP,以此可鉴别这两种近缘螨种。Objective:To compare the morphological characteristics of two sibling species of chigger mites:Leptotrombidiumrubellum and Leptotrombidium deliense.Methods:100identified larvae of two mite species(L.rubellum and L.deliense)with clearstructure were collected from the body surface of Asian house rat,Rattus tanezumi(R.flavipectus),whose morphological structure wereobserved and measured under a microscope for analyzing the morphological difference between two sibling species.Results:L.rubellum had a quadrate-like scutum(SB<AP),but L.deliense had a rectangle-like scutum(SB>AP),and the difference betweenthem had statistical significance(P<0.01).The SD,SB range of L.deliense is rather wider,and its SD,SD width/length,SB,PSB,PW/AP,PW value were all slightly higher than L.Rubellum(P<0.05).Conclusion:The two mite species are very close to each othermorphologically with tiny differences.Compared with SB<AP in L.rubellum,the difference of L.deliense is SB>AP,and this differencecan be used as the key evidence to differentiate the two mite species.

关 键 词：蜱螨亚纲 恙螨 微红纤恙螨 地里纤恙螨 形态学 

分 类 号：R384.4[医药卫生—医学寄生虫学]