Insect Life-Cycle Polymorphism

Preface. Insect life--cycle polymorphism: Introduction; S. Masaki, W. Wipking. Diversity and integration of life--cycle controls in insects; H.V. Danks. Seasonal plasticity and life--cycle adaptations in butterflies; S. Nylin. Evolutionarily stable aseasonal timing of univoltine and bivoltine insects; Y. Iwasa, H. Ezoe, H. Yamauchi. Variation of carabid life cycles along climatic gradients: an adaptive perspective for life--history evolution under adverse conditions; T. Sota. Variation in diapause characteristics and its consequences on population phenomena in the two-spotted spider mite, Tetranychus urticae Koch; A. Takafuji. Climatic legacies and sex chromosomes: latitudinal patterns of voltinism, diapause, size, and host-plant selection in two species of swallowtail butterflies at their hybrid zone; J.M. Scriber. Diapause as a pivotal factor for latitudinal and seasonal adaptation in Locusta migratoria in Japan; S. Tanaka. Summer diapause in the polymorphic life cycle of the noctuid moth Mamestra brassicae; C. Grüner, S. Masaki. Life--history variation in Dolichopoda cave crickets; C. Di Russo, G. Carchini, V. Sbordoni. Life--history patterns in 15 populations of Protohermes (Megaloptera: Corydalidae): effects of prey size and temperature; F. Hayashi. Production of alatae in response to low temperature in aphids: a trait of seasonal adaptation; S.S. Liu. Wing dimorphism and migration in the brown planthopper, Nilaparvata lugens Stål; G.R. Wu, X.P. Yu, L.Y. Tao, Z.J. Ren. Seasonal time partitioning and polymorphism in the developmental cycles of sympatric Staphylinoidea (Coleoptera) living in an unstable environment; W. Topp. Control of alternate-year flight activities inhigh-alpine Ringlet butterflies (Erebia, Satyridae) and Burnet moths (Zygaena, Zygaenidae) from temperate environments; W. Wipking, C. Mengelkoch. Insect life--cycle polymorphism: Current ideas and future prospects; H.V. Danks.Index.