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Most of the 170 species of grasshoppers and crickets included in this book can be identified instantly by their songs – and often more reliably than from their appearance. Orthopterans have recently become important subjects in evolutionary biological studies and are also increasingly used in the field of conservation as indicators of undisturbed habitat. The book comprises the following chapters: Introduction; Acoustic Methods; Sound Production and Reception of European Orthoptera; The Nature and Function of the Songs; The Value of the Songs in Taxonomy and Identification; Key to the singing Orthoptera of Western Europe, based primarily on their Songs; and other Animal Sounds that could be confused with Orthoptera Songs – illustrated with over 1600 oscillograms; three Appendixes (Check-list of the species included; Summary of Nomenclatural Changes; Data for the Song Recordings); Glossary; References; Index to Vernacular Names; and General Index.
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The Royal Entomological Society was founded in 1833 and is one of the oldest such societies in the world. Its records are an invaluable source for historians of entomology and the natural sciences both in Great Britain and overseas. This guide is principally a catalogue of the records of the society from the time of its foundation, but also covers the records of some earlier societies and collections of papers by individual entomologists. The book is introduced with essays by Brian Gardiner on the history of the Royal Entomological Society and on the development of British entomology, and by Simon Fenwick on the archives and their potential for historians.