【摘要】 本文通过使用昆虫解剖与组织切片法 ,对羊狂蝇成虫生殖与消化器官结构形态 ,以及羽化后的发育情况进行了观察 ,结果发现 :1、雌虫卵巢小管排列无序 ,与一般蝇类构造有差异。 2、雌虫羽化后第 5天子宫内卵数量达到高峰。 3、成虫消化系统退化 ,但排泄系统较发达 ,由 4根内壁密布纽扣状突起的马氏管与后肠相连并与直肠共同构成。最后作者讨论了与羊狂蝇都属不食蝇类的狂蝇科的狂蝇属 Oestrus、鼻狂蝇属Rhinoestrus、黄狂蝇属 Cuterebra、喉蝇属 Cephalopina和咽狂蝇属 Pharyngomyia,胃蝇科的胃蝇属 Gas-trophilus,皮蝇科的皮下蝇属 Hypoderma,肤蝇科 Derm atobiidae的肤蝇属 Dermatobia的成虫 ,它们的口器也完全退化 ,幼虫均系完全的寄生性 ,它们的生殖系统与羊狂蝇类似且消化系统也有已发生退化的可能性。更多还原

【Abstract】 Features of some organ structures including reproductive and digestive system and reproductive development after emerging about adult of nasal bot fly ( Oestrus ovis )are observed by dissecting and sectioning.The results are summarized as follows:1.The quantity of overioles is not fixed,and its arrangement within a ovary seems to be irregular.2.The peak value of eggs in the uterus occured 5 days after emerging.3.The digestive system of adult degenerated,while excretory system well developed,the latter is consist of four mulpighian tubules connecting with hind gut and rectum.Lastly, some flys adults,such as Oestrus,Rhinoestrus,Cuterebra,Cephalopina and Pharyngomyia of Oestridae, Gasterophilus of Gasterophilidae, Hypoderma of Hypodermatidae and Dermatobia of Dermatobiidae,their reproductive system is similar to that of O.ovis , and the possibility of degeneration might be in their digestive system since they have completely degenerated mouth parts,and their larvae take a parasitic life.更多还原