Mesa, A. [UNESP]Fontanetti, C. S. [UNESP]García-Novo, P. [UNESP]2022-04-282022-04-282001-12-01Journal of Orthoptera Research, v. 10, n. 2, p. 141-146, 2001.1937-24261082-6467http://hdl.handle.net/11449/224767Based on analysis of more than fifty species of neotropical grasshoppers with a neo XY sex determining mechanism, the authors suggest that species acquiring such mechanisms are finally extinct at the end of a relatively short evolutionary process.141-146engAcridoideaChromosomesGrasshoppersSex determinationSpecies extinctionArtigo10.1665/1082-6467(2001)010[0141:DAXACF]2.0.CO;22-s2.0-33745136692