In May 2009 a major revision of the Chorthippus species with angled pronotal keels of Greece was published. This paper is the result of more than 20 years of fieldwork, including extensive morphological and bioacoustical studies. Chorthippus parnon, C. moreanus, C. vagans dissimilis and C. biguttulus parnassicus are presented here for the first time. On the Peloponnesos several intermediate populations occur. The songs of the treated species are included on a cd.
Source: Willemse, F.M.H., O. von Helversen & B. Odé 2009. A review of Chorthippus species with angled pronotal lateral keels from Greece with special reference to transitional populations between some Peloponnesean taxa (Orthoptera, Acrididae). Zoologische Mededelingen 83: 319-507. + cd