@book {17157, title = {The Songs of the Grasshoppers and Crickets of Western Europe}, year = {1998}, publisher = {Harley Books}, organization = {Harley Books}, address = {Colchester, Essex}, author = {D. R. Ragge and W. J. Reynolds} } @article {11151, title = {The songs of the western European bush-crickets of the genus Platycleis in relation to their taxonomy (Orthoptera: Tettigoniidae)}, journal = {Bulletin of the British Museum (Natural History) Entomology}, volume = {59}, year = {1990}, month = {06/1990}, pages = {1-35}, chapter = {1}, abstract = {

The calling songs of 1 1 species of the decticine genus Platycleis s.l. (including Sepiana, Tessellana and Montana) are described and fully illustrated with oscillograms at three or four different speeds. For each species a list is provided of references to any past work published on the songs, classified according to the kind of information given. Notes on recognition, using both morphology and song, are given for each species, and two identification keys are provided, one based on morphology and the other on song. The value of the song as a taxonomic character is discussed.

}, isbn = { 565 06039 2}, issn = {0524 - 6431}, author = {D. R. Ragge} } @article {11152, title = {The songs and taxonomy of the grasshoppers of the Chorthippus biguttulus group in the Iberian Peninsula (Orthoptera: Acrididae)}, journal = {Journal of Natural History}, volume = {22}, year = {1988}, pages = {897-929}, chapter = {897}, abstract = {

The Chorthippus biguttulus group includes a number of common European species that are difficult to distinguish morphologically but are easily recognized in the field by the distinctive calling songs of the males. These song-patterns have not previously been studied in Spain and as a result the Iberian members of the group have been misidentified in almost all the extensive Spanish literature on the ecology and cytogenetics of these insects. In this study the male calling songs of all six members of the group known from the Iberian Peninsula and North Africa are fully described and illustrated with oscillograms at several different speeds. The songs of the three species known only from Iberia or North Africa, jacobsi, yersini and marocanus, are fully described for the first time (marocanus is here raised in rank from subspecies). Notes on recognition, using both morphology and song, are given for each species, and two identification keys are provided, one based on morphology and the other on song. It is shown that the three species biguttulus, brunneus and mollis, previously believed to be widespread in Iberia, are absent from most of the peninsula.

}, keywords = {acoustics, Acrididae, Chorthippus, grasshoppers, Iberia, North Africa, Orthoptera, song, taxonomy}, doi = {10.1080/00222938800770611}, author = {D. R. Ragge and W. J. Reynolds} } @article {11297, title = { The songs of the western European grasshoppers of the genus Stenobothrus in relation to their taxonomy (Orthoptera: Acrididae) }, journal = {Bulletin of the British Museum (Natural History) Entomology}, volume = {55}, year = {1987}, month = {09/1987}, url = {https://archive.org/details/bulletinofbritis552brit}, author = {D. R. Ragge} } @article {11154, title = {Acoustic Laboratory}, year = {1980}, month = {10/1980}, publisher = {British Museum (Natural History)}, address = {London, UK}, author = {D. R. Ragge} } @article {11153, title = {A putative hybrid in nature between Chorthippus brunneus and C. biguttulus (Orthoptera : Acrididae)}, journal = {Systematic Entomology}, volume = {1}, year = {1976}, pages = {71-74}, chapter = {71}, abstract = {

The characteristics of the song and morphology of a probable natural hybrid between the two grass- hoppers Chorthippus brunneus (Thunberg) and C. bigurruius (L.) are described and compared with those of the parent species. The status of C. eisentrauti (Ramme) is briefly discussed.

}, doi = {10.1111/j.1365-3113.1976.tb00033.x}, author = {D. R. Ragge} } @book {12235, title = {Grasshoppers, Crickets \& Cockroaches of the British Isles}, year = {1965}, author = {D. R. Ragge} }