Riptortus pedestris (Heteroptera: Alydidae), an important crop pest, is capable of entering reproductive adult diapause under short-day photoperiods. Though the physiological aspects of adult diapause have been well studied in this species, little is known about its morphological development. In the present study, the adult females are discriminated as prediapause and prereproductive based on the absence and presence of mature oocytes in ovarioles, respectively. We also measured the morphological development of vitellarium and lateral oviduct in females, and the accessory gland, ejaculatory duct, and testes in males of both prereproductive and prediapause adults. Our results revealed that there is a clear significant difference in the reproductive development of prediapause and prereproductive insects. Moreover, the internal morphology of reproductive organs was suppressed in prediapausebugs compared to prereproductive bugs, and the insects developedthe reproductive parts as newly emerged adults. The above findings provide basic knowledge on the characterization of diapause and reproductive R. pedestris adults, which would be applicable to molecular investigations.

中文翻译：

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滞育前和繁殖前Riptortus pedestris成虫之间内部生殖系统的发育差异。

立足鸟（Heteroptera：Alydidae）是一种重要的农作物害虫，能够在短期光周期下进入成年繁殖的滞育期。尽管已经对该成虫滞育的生理学方面进行了深入研究，但对其形态学发展知之甚少。在本研究中，成年雌性分别根据卵泡中成熟卵母细胞的缺失和存在而被区分为滞育前和生殖前。我们还测量了雌性生殖器和外侧输卵管的形态发育，以及成年前和停药前成年男性的附属腺，射精管和睾丸。我们的结果表明，滞前性昆虫和繁殖前性昆虫的生殖发育有明显的显着差异。此外，与繁殖前的臭虫相比，腹泻前的臭虫抑制了生殖器官的内部形态，并且昆虫的繁殖部分是新近出现的成虫。以上发现提供了滞育和生殖特征的基础知识pedestris成虫，将适用于分子研究。