无斑厕蝇采自我国宁夏泾源地区,为中国首次记录。该种目前仅知分布于其模式标本产地,即加拿大魁北克地区。文中记述了该种的形态特征并绘制雄性尾器图以供鉴别。
This article created the first record of Fannia immaculata in Jingyuan Region of Ningxia, China. The species is currently known only distributed its type locality namely Quebec, Canada. This paper describes the morphological characteristics of this species and male genitalia drawn diagram for identification.