Brachyp tery and wing‐polymorphism among the Coccinellidae (Coleoptera)

摘要

Abstract.Wing‐reduction among the Coccinellidae occurs in less than 100 species. Wing‐polymorphism inRhyzobius lirura(F.),R.chrysorneloides(Herbst) andSubcoccinella 24‐punctuta(L.) varies throughout the geographical ranges of the species. The incidence of wing‐polymorphism in BritishSubcoccinellahas varied markedly over the last 160 years. Wing‐polymorphism inSubcoccinellais not sex‐linked and is under complex control, influenced in some way by environmental or populatio