Precopulatory oral sex contact plays an important role in copulatory success in a cryptic desert beetle

文献类型： 外文期刊

第一作者： Qin, Xinghu

作者： Qin, Xinghu;Yang, Jinshu;Ma, Jingchuan;Wang, Guangjun;Zhang, Zehua;Qin, Xinghu;Qin, Xinghu;Yang, Jinshu;Ma, Jingchuan;Wang, Guangjun;Zhang, Zehua;Lock, Thomas Ryan

作者机构：

关键词： courtship; mating behavior; oral sexual contact; sexual selection

期刊名称：ECOLOGY AND EVOLUTION （ 影响因子：2.881； 五年影响因子：3.252 ）

ISSN： 2045-7758

年卷期： 2021 年 11 卷 18 期

页码：

收录情况： SCI

摘要： Precopulatory courtship plays an essential role in the insemination process and influences postcopulatory behavior between males and females. Male precopulatory oral stimulation of female genitals is rare for invertebrates. Here, we describe an intriguing oral sexual courtship in a cryptic desert beetle Platyope mongolica Faldermann. The males repeatedly contact the female's genitals using their mouths to gain consent to mate. Furthermore, the rate at which males contact the female's genitals relates to the copulation success in a series of observations. However, interference in oral sexual contacts decreased the proportion of successful copulation. Further no-choice tests found homosexual behavior between males with antenna removed. We report the precopulatory oral sexual behavior and its important role for copulation success in P. mongolica for the first time. These findings highlight the significance of oral sexual courtship in sexual selection.

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