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跳蚤分公母吗
更新时间： 2020-10-10 00:00:00  

跳蚤为属于蚤目的完全变态类。跳蚤是小型、无翅、善跳跃的寄生性昆虫，成虫通常生活在哺乳类动物身上，少数在鸟类。触角粗短。口器锐利，用于吸吮。腹部宽大，有9节。后腿发达、粗壮。蛹被茧所包住。成虫体型微小或小型，无翅，体坚硬侧扁，外寄生于哺乳类和鸟类体上，具刺吸式口器，雌雄均吸血；幼虫无足呈圆柱形，营自由生活，具咀嚼式口器，以成虫血便或有机物质为食。雌性跳蚤腹部非常大，呈黄褐色，雄性个体较小，身体呈黑色。 虱子雌雄不太好分，需要在显微镜下才能分辨出来。

关键词： 跳蚤

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