Abstract
Sexual selection could act differently in the responses observed in the genitalia and somatic traits of arthropods related to variation and allometric relationships, generating divergence on the variation at the interspecific level. At the intraspecific level, it has been observed that the allometric relationships of the genitalia in males have markedly lower values than those recorded for somatic features, thus providing support to the one-size-fits-all hypothesis, as a result of fits during mating interaction. Throughout this paper, we evaluate the allometry and variation in genitalia and somatic structures, between and within populations of the Chilean wasp Sphex latreillei Lepeletier de Saint Fargeau 1831. We found significantly lower allometric variation for genitalia in both populations compared with the allometry of somatic traits. These results support the hypothesis of standardized sizes in arthropod genitalia as a result of the action of sexual selection by fit mechanisms during copulation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
