Zlatkov Boyan
Sofia University St. Kliment Ohridski, Faculty of Biology, Dept. of Zoology and Anthropology, 8 Dragan Tsankov Blvd., 1164 Sofia, Bulgaria.; Email:
Zootaxa. 2016 Sep 15;4168(2):297-312. doi: 10.11646/zootaxa.4168.2.4.
Eucosmini and Grapholitini are highly specialised and closely related tribes of the subfamily Olethreutinae of the family Tortricidae. Previous studies have shown that there is considerable similarity in the general shape of the everted vesica and structure of cornuti in these two tribes. In this study the possible function of the vesica during copulation is discussed based on everted vesicae of intact specimens treated with dichlorvos, a compound that causes eversion of the vesica and formation of the spermatophore. A comparison between chemically and mechanically everted vesicae showed that the vesica consists of two functionally different parts: an eversible and a non-eversible. Clear distinction in the position and function of deciduous and non-deciduous cornuti was observed; non-deciduous cornuti are attached to the eversible part of the vesical and the deciduous cornuti to the non-eversible part. The mechanism of detachment of deciduous cornuti was revealed. Some peculiarities of the possible interaction between male and female genitalia are discussed.
真小卷蛾族和小卷蛾族是卷蛾科小卷蛾亚科中高度特化且亲缘关系密切的族。先前的研究表明，这两个族的外翻囊状部的总体形状和角状器的结构有相当大的相似性。在本研究中，基于用敌敌畏处理的完整标本的外翻囊状部，讨论了交配期间囊状部的可能功能，敌敌畏是一种能使囊状部外翻并形成精包的化合物。化学外翻和机械外翻囊状部的比较表明，囊状部由两个功能不同的部分组成：一个可外翻部分和一个不可外翻部分。观察到落叶性和非落叶性角状器在位置和功能上有明显区别；非落叶性角状器附着在囊状部的可外翻部分，而落叶性角状器附着在不可外翻部分。揭示了落叶性角状器的脱离机制。讨论了雄性和雌性生殖器之间可能相互作用的一些特点。
