两种油菜露尾甲外生殖器结构的观察

Genital structure of two species of Nitidulidae attacking spring rape

对春油菜上的两种露尾甲害虫 ,油菜叶露尾甲和油菜花露尾甲的雌雄外生殖器的形态结构进行了比较研究 ,发现两种露尾甲的产卵器结构差异较大 ,是其产卵时对油菜造成危害不同的基本原因。通过对两种露尾甲的雄性外生殖器结构比较 ,表明其雄性外生殖器结构不同 ,特别是阳茎基差异明显 。

The genital structures of two species of Nitidulidae attacking spring rape, Strongllodes variegates (Faimaire) and Meligethes aeneus Fabricius, were compared. Their ovipositor structures are much different and there by, cause different damaging severity by oviposition. The male genital structure is also different, which can be used in the identification of the two species.