TY - BOOK T1 - The Songs of the Grasshoppers and Crickets of Western Europe Y1 - 1998 A1 - D. R. Ragge A1 - W. J. Reynolds PB - Harley Books CY - Colchester, Essex ER - TY - BOOK T1 - Grasshoppers, Crickets & Cockroaches of the British Isles Y1 - 1965 A1 - D. R. Ragge ER - TY - JOUR T1 - The songs of the western European grasshoppers of the genus Stenobothrus in relation to their taxonomy (Orthoptera: Acrididae) JF - Bulletin of the British Museum (Natural History) Entomology Y1 - 1987 A1 - D. R. Ragge VL - 55 UR - https://archive.org/details/bulletinofbritis552brit IS - 2 ER - TY - Generic T1 - Acoustic Laboratory Y1 - 1980 A1 - D. R. Ragge PB - British Museum (Natural History) CY - London, UK ER - TY - JOUR T1 - A putative hybrid in nature between Chorthippus brunneus and C. biguttulus (Orthoptera : Acrididae) JF - Systematic Entomology Y1 - 1976 A1 - D. R. Ragge AB -

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.

VL - 1 IS - 1 ER - TY - JOUR T1 - The songs and taxonomy of the grasshoppers of the Chorthippus biguttulus group in the Iberian Peninsula (Orthoptera: Acrididae) JF - Journal of Natural History Y1 - 1988 A1 - D. R. Ragge A1 - W. J. Reynolds KW - acoustics KW - Acrididae KW - Chorthippus KW - grasshoppers KW - Iberia KW - North Africa KW - Orthoptera KW - song KW - taxonomy AB -

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.

VL - 22 ER - TY - JOUR T1 - The songs of the western European bush-crickets of the genus Platycleis in relation to their taxonomy (Orthoptera: Tettigoniidae) JF - Bulletin of the British Museum (Natural History) Entomology Y1 - 1990 A1 - D. R. Ragge AB -

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.

VL - 59 SN - 565 06039 2 IS - 1 ER -