Polymorphism in Philaenus spumarius (Homoptera) in the USSR

Whittaker, J. B. 1972. Polymorphism in Philaenus spumarius (Homoptera) in the USSR. Oikos 23: 366-369. Copenhagen. Colour morph frequencies of Philaenus spumarius (L.) are given from nine sites in European and Asian USSR. It is shown that certain morphs are rare or absent in parts of the species' range and possible reasons for this are discussed. Dr. J. B. Whittaker, Dept. of Biological Sciences, University of Lancaster, Bailrigg, Lancaster, England. OnImcaHa isaCTOTa BCTpeqIaeMOCTH 1IBeTOBbIX MOP4 Philaenus spumarius H3 9 MeCTOo6HTaH14A B eBporierICKOiIr H a3HaTCKOr4 IaCTsX CCCP. flOKa3aHO, HTO oripegeiIeHlibie MOP4TEI BCTpe'asOTCs peAKo HJIs OTCYTCTBYIOT BOBCe B OTaeJIbHbIX M qCT$Ix apeania B13la, o6cysxaIoTcB BO3MOKHbIwe HP1H'HbI 3TOrO BJIeHHSI.