The desiccation of the Mediterranean Basin at the end of the Miocene was a milestone in the evolution of the Mediterranean sandfly fauna. This severe environmental change should have notably influenced their paleobiogeography as well as paleoecology and might have triggered the rapid speciation of the ancestors of the extant European sandfly species. The aim of this study was to explore how the Messinian Salinity Crisis could influence the distribution and migration routes of the ancient Mediterranean sandfly species. The unknown ecological requirements of this ancient species were replaced by the distribution-limiting climatic values of three species of extant European phlebotomine sandflies which represent the three ecological types of European sandfly fauna. The former potential occurrence patterns were determined by Climate Envelope Modelling Method. As a climate model for the Messinian Period in the Mediterranean Basin, the modified mid-Pliocene warm period model was used. The thermal surplus of the desiccated seafloor was reconstructed based on the atmospheric lapse rate. It was found that the extraordinary hot climate of the Mediterranean abyssal plain did not allow the direct cross-migration of the ancient sandfly species anywhere between Europe and North Africa neither through Gibraltar nor the Strait of Sicily. While Phlebotomus neglectus and Phlebotomus papatasi could colonize the Adriatic Plain, Phlebotomus ariasi could not. The results indicate that the Messinian played an important role in the speciation rather than migration of the ancestors of present-day Mediterranean sandflies.

中新世末期地中海盆地的干燥是地中海沙蝇动物区系演化的一个里程碑。这种严重的环境变化本应显着影响其古生物地理学和古生态学，并可能触发了现存欧洲沙蝇物种祖先的迅速形成。这项研究的目的是探索墨西尼盐度危机如何影响古代地中海沙sand物种的分布和迁徙路线。这个古老物种的未知的生态学要求被代表欧洲沙蝇动物群的三种生态类型的三种现存欧洲虫沙蝇的分布极限气候值所代替。通过气候包络模型法确定了前者的潜在发生方式。作为地中海盆地墨西尼时期的气候模型，使用了改良的上新世中期暖期模型。根据大气流失率重建了干燥海底的热盈余。人们发现，地中海深海平原异常炎热的气候不允许古老的沙蝇种类直接穿越欧洲和北非之间的任何地方，无论是通过直布罗陀还是在西西里岛海峡。尽管 人们发现，地中海深海平原异常炎热的气候不允许古老的沙蝇种类直接穿越欧洲和北非之间的任何地方，无论是通过直布罗陀还是在西西里岛海峡。尽管 人们发现，地中海深海平原异常炎热的气候不允许古老的沙蝇种类直接穿越欧洲和北非之间的任何地方，无论是通过直布罗陀还是在西西里岛海峡。尽管白蛉neglectus和白蛉papatasi可能定植于亚得里亚海平原，白蛉ariasi不能。结果表明，墨西拿人在物种形成中起着重要作用，而不是当今地中海沙蝇祖先的迁徙。