缓慢细蚤(Leptupsylla segnis)是家柄鼠常见寄生蚤种,在鼠疫动物流行病学上有一定意义。为了解其变态发育情况,我们于1982年7～8月进行了实验观察。一、蚤源:为本所实验室饲养繁殖,其亲本来源于下关黄胸鼠和褐家鼠。二、方法:在单独饲养本蚤的蚤缸中(蚤床之上)放黑色硬纸片,然后将供蚤吸血的小白鼠放入 Leptupsylla segnis is a common parasitic flea of ​​domesticated rats and has certain significance in the epidemiology of plague animals. In order to understand its metamorphosis, we conducted an experimental observation in July-August 1982. First, Flea Source: Reproduction of the laboratory-based laboratory, the parent from Xiaguan and Rattus norvegicus. Second, the method: in the flea flea feeding alone flea (on the bed of the flea) put a black piece of paper, and then for the fleas sucking mice into