Изменчивость окраски и рисунка в двух отдаленных популяциях цикадки Macropsis prasina (Воh., 1852) (Homoptera, Cicadellidae)

Abstract

The paper deals with a description of colour and pattern variability in Macropsis prasina (В о h.) from Gorky and Lithuanian populations. Phenograms of various popu­lations which reflect the ratios of the phene frequencies in development of certaip pattern spots are of the same type, which permits them to be considered as a good species cri­terion for the Macropsis L e w . genus polymorphous species. With similar phene phene­ frequencies the frequencies of certain pattern phenotypes in the compared populations differ considerably. A dark-wing variety (var. fuscipennis, var. nov.) occurs among males of the Gorky population, which differs greatly from light-wing males of the same and other populations in the pattern phenotype frequency ratio. A possibility to separate visually numerous colour and pattern phenotypes in the Macropsis representatives inhabiting willows makes them a good object for population studies.