On the Origin and Metamorphoses of Insects. Second Edition

By: LUBBOCK, John, Sir Nature Series

Price: $40.00

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LUBBOCK, John, Sir. On the Origin and Metamorphoses of Insects. With numerous illustrations. London : Macmillan and Co., 1874. [Second Edition]. Pp (4),[vii]-xvi,[1]-108,(2). Illustrated. 8vo, reddish-brown cloth, gilt lettering and vignette to front board and spine. A volume in the Nature Series. Contents : I. The Classification of Insects : Introduction.-Stages in the Life of an Insect.-Classification of Insects.-Characters derived from the Wings; from the parts of the Mouth; from the Metamorphoses.-The Classes of Insects: Hymenoptera, Strepsiptera, Coleoptera, Euplexoptera, Orthoptera, Thysanoptera, Neuroptera, Trichoptera, Diptera, Aphaniptera, Heteroptera, Homoptera, Lepidoptera. II. The Influence of External Conditions on the Form andStructure of Larvae : Larvæ depend partly on the group to which they belon g.-Wood-eating Larvæ.-Larvæ of Lamellicorns.-Larvæ depend also in part on mode of life.-Larvæ of Hymenoptera, of Sirex; of Tenthredo; of Ichneumons; of Bees.-Rudimentary legs of Bee Embryo.-Beetles, Weevils, Scolytus, Crioceris, Sitaris, Metamorphoses of Pteromalidæ. Platygaster, Polynema.-Influenceof external conditions.-Developmental and adaptive Metamorphoses. III. The Nature of Metamorphoses : The life history of an Insect must be considered as a whole.-Vagueness of the term Larva.-Some larvæ much more advanced tha n others.-Organs develope in different order, in different groups.-Suppressed stages.-Apod condition of Phryganea; of Aphis; of Chrysopa.-Libellulidæ.-Donacia. -Spiders.-Myriapods.-Apod stage of Homomorphous Insects once probably longer than now.-Suppression of embryonic stages.-Metamorphoses of Hydroida, Crustacea, Isopods, and Amphipods.-Echinoderms. -Variations in development induced by the influence of external conditions. IV. The Origin of Metamorphoses : Origin of Metamorphoses.-Views of Messrs. Kirby and Spence.-Nature of the question.-Young animals often more similar than mature.-Viewsof Darwin, Herbert Spencer, Johannes Müller, Fritz Müller, and Agassiz.-Ef fect of size of egg.-Insects leave the egg in a more or less developed condition.-Consideration of pupal condition.-Quiescence of pupa.-Period of quiescence at each moult.-Changes not so abrupt as generally supposed.-Change in mouth-parts.-Difficulty in reference to Darwinian theory.-Mouth-parts of Campodea and Collembola, as intermediate between the mandibulate and haustellate types.-Change in mouth-parts as connected with pupal conditions.-Origin of wings.-Use of wings under water.-Connection of metamorphoses with alternation of generations.-Parthenogenetic larvæ of Cecidomyia.-In alternation of generations one form always agamic.-Dimorphism and Dieidism.-Summary and Conclusions. V. The Origin of Insects : The Origin of Insects.-Mistaken views of Darwinian theory.-Natural selection a vera causa.-Application of Darwin's views to Insects.-Similarity of young Crustacea as compared with mature forms; ditto in Insects.-Type of Insecta.-Two principal types of larvæ: Hexapod and Apod.-Conclusions to be drawn from them.-Campodea the modern representative of the Insect-stock.-Campodea, perhaps derived from Tardigrade.-Vermiform or Apod type of larva.-Views of Fritz Müller, Brauer, and Packard.-Represents a still earlier ancestor.-Modern representatives. -Notommata, Albertia, Lindia.-Earlier forms difficult to trace.-Lowest forms of animal life.-Yolk-segmentation.-Embryology and Evolution.-Light thrown by the evolution of the individual on that of the species. Minor bubbling to cloth, light edgewear, some foxing throughout, else very good. 40.00

Title: On the Origin and Metamorphoses of Insects. Second Edition

Author Name: LUBBOCK, John, Sir Nature Series

Categories: 888,

Publisher: Macmillan and Co., London, 1874,:

Seller ID: 105594