Species;Distribution "C. brevigena";"Europe and Mediterranean, eastwards to Iran, southwards to North Africa, Egypt and Tunisia (Ascher and Pickering 2011–2018)." "C. collaris";"Widespread in the Palaearctic, temperate Asia except for Southwest Asia; in Europe documented for Central Europe, France and Spain (Westrich 1997, Ascher and Pickering 2020)." "C. halophilus";"Coastal habitats of the North Sea (Westrich 1989, Kuhlmann et al. 2007, Ascher and Pickering 2011–2018)." "C. hederae";"Currently spreading from the Mediterranean of Europe to Central and Western Europe, reported from Great Britain, Spain, Italy, Croatia, Greece (Schmid-Egger 1997, Rathjen 1998, Vereecken et al. 2009)." "C. intricans";"North Africa, Iberian Peninsula (Ascher and Pickering 2020)." "C. pannonicus";"Endemic to the area around Lake Neusiedl, Austria (Hölzler and Mazzucco 2011)." "C. standfussi";"Endemic to Thessaly, Greece (Kuhlmann 2003)." "C. succinctus";"Southern and central Europe, in Great Britain, in the north as far as Finland and Sweden, in western Asia as far as Kazakhstan (Westrich 1989, Kuhlmann et al. 2007, Ascher and Pickering 2020)."