Archive image from page 391 of The anatomy, physiology, morphology and. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author; CUbiodiversity4765349-9875 Year: 1890 ( 676 THE GENERATIVE ORGANS. In the egg-laying female, the uterus often contains an egg in which the embryo is in an advanced stage of development. In Sarcophaga and Tachina it is developed into a large cavity, which is rolled spirally on itself, an
Archive image from page 391 of The anatomy, physiology, morphology and. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author; CUbiodiversity4765349-9875 Year: 1890 ( 676 THE GENERATIVE ORGANS. In the egg-laying female, the uterus often contains an egg in which the embryo is in an advanced stage of development. In Sarcophaga and Tachina it is developed into a large cavity, which is rolled spirally on itself, and contains a large number Fig. 95.—a median vertical sociion of the uterus of a mature Plosv-fly. /, cuticular pad of the genital fossa ; g, genital spine ; od, oviduct ; /, duct of the par- ovarium ; r(/, duct of the receptaculum seminis ; , receptaculum seminis ; s, sacculus ; n, uterus ; v, vaginal tube. of eggs which are hatched within its cavity, so that these insects deposit living larva;. In the pupiparae, the uterus is also largely developed, and contains but one embryo at a time, which grows and develops until it is ready to become a pupa.
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