A description of the song of Chorthippus cazurroi (Orthoptera: Acrididae) with notes on its taxonomic position and distribution

The highly characteristic calling and courtship songs of Chorthippus cazurroi are described for the first time and are used, together with a number of morphological characters, as a basis for discussing the differences between this species and C. pullus, C. pulloides, C. nevadensis and Omocestus llorenteae, with which it has been or might be confused. Despite the superficial resemblance between cazurroi and these species, clear and reliable characters are described for distinguishing it from all of them. The distribution of cazurroi is also discussed and it is suggested that its inclusion in the Libro Rojo de los Ortópteros Ibéricos as extinct or in danger is, as the authors of that work suspected, unduly pessimistic. A lectotype is designed from the type material of C. cazurroi.