20 Ed Baker1,2, Ben W. Price1 1Department of Life Sciences, Natural History Museum, London, SW7 5BD, UK 2Department of Electronic Engineering, University of York, York, Introduction The Natural History Museum (London) collection of recorded wildlife sound comprises mainly of field and laboratory recordings made between the 1970s and 1990s by David Ragge and Jim Reyn­ olds. The recordings underpin historic acoustic studies on the European Orthoptera (e.g. Ragge & Reynolds, 1998) and the taxonomy of the frogs of Mulu National Park (e.g. Dring, 1984). Where possible BioAcoustica makes links between sound recordings and preserved specimens, and the collecting of appropriate voucher specimens is encouraged for those submitting recordings. The majority of specimens for which recordings are held (including a number of holotypes) are depos­ ited in the Natural History Museum, London. Depositing specimens in other collections is also en­ couraged, and several projects will also be depositing material in the National Museums of Scotland, Edinburgh. Linking recordings to published works is also facilitated, allowing the recordings that underpin re­ search to be easily identified and faciliating reproducability in bioacoustic research. A description of the project canbe found in Baker et al (2015). Current Work The value of sound recordings in taxonomy is highlighted by the recent description (Heller & Baker, 2017) of a new species of the Orthopteran genus Horatosphaga that was initially uncovered by an unusual sound recording that did not match other members of the genus. The linkage of sound re­ cordings to museum specimens allowed the status of the new species to be confirmed. Several publications (e.g. Marshall et al, 2016) have specified BioAcoustica as a repository for sound recordings underpinning research findings, and others (e.g. Milach et al, 2015) have contributed re­ cordings that are linked to publictions after the original publication. Future Plans Recordings in BioAcoustica underpin the Leverhulme Trust funded Automated Acoustic Observa­ tories project. This project aims to use a new supertree of Orthoptera, bioacoustic analysis, and oth­ er trait data to create a step change in acoustic monitoring of species. References Baker E, Price BW, Rycroft SD, Hill J, Smith VS. 2015. BioAcoustica: a free and open repository and analysis platform for bio­ acoustics. Database 2015:bav054. Dring JC. 1984. Some new frogs from Sarawak. Amphibia-Reptilia 4(2):103 - 115. Heller K-G, Baker E. 2017. From an old sound recording to a new species in the genus Horatosphaga (Orthoptera: Tettigo­ nioidea: Phaneropterinae: Acrometopini). Zootaxa 4323(3):430-434. Marshall DC, Hill KBR, Moulds M, et al. 2016. Inflation of Molecular Clock Rates and Dates: Molecular Phylogenetics, Bio­ geography, and Diversification of a Global Cicada Radiation from Australasia (Hemiptera: Cicadidae: Cicadettini). System­ atic Biology 65(1):16-34. Milach EM, Martins L de P, Da Costa MKM, et al. (2015) A new species of tree crickets Oecanthus (Orthoptera, Gryllidae, Oecanthinae) in tobacco plantation from Southern Brazil, with body color variation. Zootaxa 4018(2):266. Ragge DR, Reynolds WJ. 1998. The Songs of the Grasshoppers and Crickets of Western Europe. Colchester, Essex: Harley Books; Horatosphaga raggei Heller & Baker, 2017: a new species of bush cricket first discovered from a sound recording on BioAcoustica Data linkages in BioAcoustica An online annotation tool allows for sections of voice introduction (blue), extraneous noise (red) and clear calls (green) to be identified, facilitating automatic analysis. Recordings linked to a publication (Marshall et al, 2016) on BioAcoustica.