Mating behavior and genital damage during copulation in the leaf beetle Lema coronata (Chrysomelidae: Criocerinae)
Mating behavior and genital damage during copulation in the leaf beetle Lema coronata (Chrysomelidae: Criocerinae)
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叶甲虫 Lema coronata（叶甲科：Criocerinae）交配行为和交配过程中的生殖器损伤
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
S. Akimoto
中科院分区：
文献类型：
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作者：
Y. Matsumura;S. Akimoto
冠冠叶甲虫Lema coronata Baly的生殖器非常长，两性的生殖器长度都是体长的两倍多。我们在实验室观察了该物种的交配行为，并用扫描电子显微镜检查了雄性生殖器的形态。雄性不进行交配前的求爱和交配后的守护，交配持续约30 分钟。雄性生殖器表面光滑，顶端无特殊结构。在一名女性的精囊管中发现了一块断裂的男性生殖器。我们讨论了男性生殖器损伤的适应性意义和生殖器延长的选择因素。
The criocerine leaf beetle Lema coronata Baly has extremely long genitalia that reach more than twice the body length in both sexes. We observed mating behavior of this species in the laboratory and inspected the male genital morphology using a scanning electron microscope. The males did not perform pre‐copulatory courtship and post‐copulatory guarding of the mates, and copulation lasted only for about 30 min. The surface of male genitalia is smooth without any special structures at the tip. A fragment of broken male genitalia was detected in the spermathecal duct of one female. We discuss the adaptive significance of male genital damage and the selective factor of elongated genitalia.