跳蚤种类很多(我国已记载者有78种),分布很广,为重要的医学昆虫。我国主要的蚤类有如下数种(如附表)。蚤的危害性很大。鼠间鼠疫的流行,全靠跳蚤来传播。鼠间鼠疫传至人间主要也靠跳蚤传播来实现。日本帝国主义在我国东北、华东,美帝在东北和朝鲜,都曾用跳蚤携带鼠疫杆菌进行细菌战。此外,跳蚤尚可传播地方性斑疹伤寒、土拉热和絛虫病,也可传 Many types of fleas (China has recorded 78 species), is widely distributed, as an important medical insect. The main species of fleas in our country are listed below. The dangers of fleas large. The prevalence of plague in rats depends entirely on fleas. Plague rats spread to the world mainly by flea spread to achieve. Japanese imperialism in our country northeast, East China, the United States in the northeast and North Korea, have used fleas carrying plague bacteriosis. In addition, fleas can still transmit endemic typhus, turare and taeniasis, but they can also be transmitted