1965年我们在那坡县发现广西第二个肺吸虫病的自然疫源地,并查见1例肺型病例,经用硫双二氯酚治疗痊愈。从该地溪蟹分离获得的肺吸虫囊蚴接种猫、犬和大鼠后,在它们的肺内均检获成虫,证实为异盘并殖吸虫。本文仅就近年对其囊蚴的观察作一报道。第二中间宿主的感染情况那坡县异盘并殖吸虫囊蚴的寄生为弯肢溪蟹(Potamon flexum Dai)。1980年10月从该县采回一批溪蟹,逐只研磨分离囊蚴。检蟹33只,囊蚴阳性蟹27只,感染率为81.8%, In 1965 we found a natural foci of the second paragonimiasis in Napo County in Guangxi and found one lung-type case that was cured by treatment with sulphadipine. Parasitic parasitic metacercariae, isolated from the crabs of this crab, were harvested from all of their lungs after inoculation of cats, dogs, and rats, and confirmed to be Paragonimus. This article only on the observation of its metacercaria in recent years for a report. Infection with the second intermediate host Parasitic Paragonimus larvae parasitized in Napo County were Potamon flexum Dai. In October 1980, a batch of crabs were retrieved from this county, and the larvae of larvae were separated by grinding only. 33 crabs, 27 cercariae positive crabs, the infection rate was 81.8%