Museum National d'Histoire Naturelle, Mécanismes Adaptatifs et Évolution (MECADEV): UMR 7179 MNHN-CNRS, CP 50, Entomologie, 45 rue Buffon, 75005, Paris, France.
Department of Entomology, College of Agriculture, University of Southern Mindanao, Kabacan Cotabato, Philippines.
Sci Rep. 2021 May 17;11(1):10412. doi: 10.1038/s41598-021-89759-3.
The study of male genital appendages is often necessary to identify a species and to characterise the higher systematics ranks for the Cercopidae, a large family of Hemiptera. Therefore, many authors have used them in their work but without any clear consensus on the terms used for each part constituting the male terminalia. A standardised terminology is important for the quality of a taxonomic description but even more essential when we want to compare species and establish a primary homology between states of character and their use in the frame of phylogenetic analysis. The use of a consensus terminology should ensure that we are all observing, speaking and describing the same genital appendage and comparing homologous characters. In order to propose a consensus terminology, we have reviewed all the major works on the anatomy of terminalia for the family since the first description using those characters in 1922. We proposed the use of consensual terms, listed with their definitions. In addition we studied a diversified panel of male specimens, chosen in order to represent as many Cercopidae tribes as possible. We categorised five different groups of Cercopidae according to their male terminalia structures. This opens the reflection on the evolutionary patterns for these structures.
研究雄性生殖器附属物对于识别物种和描述 Cercopidae（半翅目）的高级系统发育等级非常重要。因此，许多作者在他们的工作中使用了这些结构，但对于构成雄性外生殖器的每个部分的术语使用没有任何明确的共识。标准化术语对于分类描述的质量很重要，但在我们想要比较物种并在系统发育分析框架中建立特征状态之间的初步同源性时更为重要。共识术语的使用应确保我们观察、描述和比较的是相同的生殖器附属物和同源特征。为了提出共识术语，我们回顾了自 1922 年首次使用这些特征描述以来，关于该科外生殖器解剖结构的所有主要著作。我们提出使用共识术语，并列出了它们的定义。此外，我们研究了多样化的雄性标本面板，这些标本是为了尽可能代表更多的 Cercopidae 部落而选择的。我们根据雄性外生殖器结构将 Cercopidae 分为五个不同的组。这为这些结构的进化模式打开了思考。
