我国库蠓属带纹亚属一新种(双翅目:蠓科)  

A New Species of Culicoides (Beltranmyia) from China (Diptera∶Ceratopogonidae)

作　　者：瞿逢伊[1] 曹敏[2] 刘荣兴[1,2] 

机构地区：[1]第二军医大学病原生物学教研室,上海200433 [2]上海出入境检验检疫局,上海201202

出　　处：《中国寄生虫学与寄生虫病杂志》2010年第5期321-324,共4页Chinese Journal of Parasitology and Parasitic Diseases

摘　　要：目的调查上海地区吸血蠓的种类。方法根据上海浦东机场(芦苇湿地)2007-2009年夜间紫外线灯诱获得的蠓类材料,经初步分类后用树胶酚法制作玻片标本,镜检其形态和量度特征,鉴定蠓种。结果发现库蠓属一新种,命名为上海库蠓Culicoides(Beltranmyia)shanghaiensis sp.nov.。该新种鉴别特征为:①翅无斑,基室具0～7根大毛;②雌蠓复眼分离,小眼间具细毛,喙头比(P/H)0.7,头喙比(H/P)1.45,触角比(AR)1.18,触角第3～14节具感器(其中第4～10节的感器出现频率分别为:0.7、0.5、0.5、0.7、0.5、0.8和0.7,呈无规律的缺失),具一个发达的受精囊;③雄蠓阳基侧突基部窄连。新种形态酷似Culicoides homoc hrous Remm,但该种翅基室密布大毛;雌蠓复眼分离、光裸,头喙比为1.03～1.04;雄蠓阳基侧突分离。此外,沟栖库蠓Culicoides charadraeus Arnaud和稀见库蠓Culicoides rarus Das Gupta与本新种亦相似,但前2种雌蠓复眼光裸、密接(或窄离),触角比>1.61,翅基室无大毛,雄蠓尾器有明显不同。结论描述采自上海的库蠓属带纹亚属一新种,并与近似种的鉴别作了分析讨论。Objective To investigate the species of blood-sucking midges of Shanghai. Methods The specimens were collected by light-trap from Pudong Airport （reed marshes）, Shanghai, during the years of 2007-2009. The captured samples was briefly classified, and mounted slide specimens with phenol-balsam method. The microscopic examination including morphological and numerical characters for species identification. Results A new species of biting midges named Culicoides （Beltranmyia） shanghaiensis sp. nov. was obtained, its diagnostic characters were as follows： ① wing without distinct pale or dark markings, only 0-7 macrotrichia find in basal cell; ② the female eyes separate, with pubescence between facets, proboscis head ratio （P/H） 0.7, while the head proboscis ratio （H/P） 1.45, antennal ratio （AR） 1.18, sensila coeloconica present on segments 3-14 （frequency： 1.0, 0.7, 0.5, 0.5, 0.7, 0.5, 0.8, 0.7, 1.0, 1.0, 1.0, 1.0, respectively, n=17） and absent on segments 4-10 indefinitely, with one developed spermatheca; ③ the male′s parameres fused narrowly on base. The new species is allied to Culicoides homochrous Remm, but can be distinguished chiefly by： its wing with numerous macrotrichias distributing in basal cell; female eyes separate, bare, H/P 1.03-1.04; male′s parameres separate. Besides, the Culicoides charadraeus Arnaud and Culicoides rarus Das Gupta also resembling with the new species, it can be differentiated from the two former species by the female eyes bare and contiguous （or narrowly separated）, AR 1.61, no macrotrichia in basal cell of the wings, and the different male genitalia features. Conclusion A new species of biting midges collected from Shanghai is described, and some diagnostic characters are discussed for distinguishing the closely allied species.

关 键 词：双翅目 蠓科 上海库蠓 新种 

分 类 号：R384.52[医药卫生—医学寄生虫学]