香梨优斑螟成虫内生殖系统结构观察

目的]为明确香梨优斑螟成虫的生殖系统的结构特征。方法]解剖雌雄成虫的内生殖系统并分析。结果发现：雄虫的内生殖系统主要由1对睾丸愈合为一体的近球状精巢,经输精管与2个储精囊相连,储精囊的下端再经输精管与附腺的前端以及复射精管中部相连,其中复射精管前端与附腺前端相连,其下端与单射精管相连, 单射精管末端接于阳茎。雌虫的内生殖系统由2组各4根卵巢的上端连接与悬带,其下端连接两条侧输卵管,两条侧输卵管下端共同连接一条中输卵管,中输卵管末端连接发达的梨形交配囊、受精囊和附腺囊,其中交配囊、受精囊均与导精管相连,附腺囊与附腺相连。结论]雄成虫内生殖系统由精巢、2个储精囊、输精管、复射精管、2条附腺及单射精管尾端组成,雌虫的内生殖系统由8根卵巢、2根侧输卵管、中输卵管、受精囊、交配囊及较长的附腺组成。

Adults of Euzophera pyriella: Observation on the Internal Reproductive System Structure

To clarify the structural characteristics of the reproductive system of the adults of Euzophera pyriella, we dissected and analyzed the internal reproductive systems of male and female Euzophera pyriella adults. The results showed that: the internal reproductive system of male adult mainly consisted of a pair of testis to heal nearly spherical spermary which was connected with two seminal vesicles by vas deferens, and the lower end of seminal vesicles were attached to the front-end of accessory gland and the middle of ejaculatory duct by vas deferens, and the front- end of ejaculatory duct was jointed to accessory gland, the inferior extremity of ejaculatory duct was attached to injective spermiduct, the end of injective spermiduct and penis were interconnected. And the internal reproductive system of female adult was mainly composed of two group ovaries (four ovarian tubes per group), the upper end of the ovary was jointed to sling, the lower end of ovary was attached to two lines of lateral oviducts, the lateral oviducts converged to a single median oviduct, the terminal median oviduct was articulated with developed pyriform copulatory bursa, spermatheca and accessory gland capsule, and the copulatory bursa and spermatheca jointly communicated with the seminal duct, and the accessory gland capsule was related to accessory gland. The reproductive system of male adults consists of a spherical spermary, two seminal vesicles, vas deferens, one ejaculatory duct, two accessory glands and one injective spermiduct. And the reproductive system of female adults consists of eight ovaries, two lines of lateral oviducts, a median oviduct, a pyriform copulatory bursa, a spermatheca, an accessory gland capsule and a longer accessory gland.