Article
Does thermal melanism maintain melanic polymorphism in the two-spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)?
Zhurnal obshchei biologii - 1 Jan 2000
Majerus M E, Zakharov I A
Abstract excerpt
Melanic polymorphism in Adalia bipunctata is usually said to result from cyclical seasonal selection acting on the morphs: predominantly black individuals gain a reproductive advantage in the spring and summer, red forms gaining an advantage during the winter. The veracity of this proposition is based largely on a series of samples taken in Berlin-Buch in the 1930s by Timofeeff-Ressovsky (1940). These show...
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