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2012年4月12日和2013年11月8日,在上海市黄浦区淮海公园绿化地带蝇类监测点,采用笼诱法分别捕获1只上海地区尚未报道过的蝇种(2(?)),该蝇种经鉴定为双重厕蝇(Fannia dupla Nishida,1974)。文献中该蝇种在日本、我国台湾地区有记载,但近年来北京、福建地区均有报道,上海地区连续2年在同一区域均捕到该蝇种。关于双重厕蝇文献记录较少,现就双重厕蝇的外形特征、分布特点进行描述补充。
On April 12, 2012 and November 8, 2013, one flies species (2 (?)) That had not been reported in Shanghai was captured by cage induction method at flies monitoring sites in Huaihai Park Green Belt, Huangpu District, Shanghai. The fly species was identified as a double-nosed fly (Fannia dupla Nishida, 1974). In the literature, the fly species is recorded in Japan and Taiwan of China. However, it has been reported in Beijing and Fujian in recent years that the fly species was caught in the same area in Shanghai for two consecutive years. About double larvae less documentation, now on the appearance of double larvae, characteristics of the distribution to describe the supplement.