Artist: Andy Wheddon
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[image: Andy Wheddon]
Andy Wheddon is a Brighton based recording artist who has been producing audio art and electronica for several years.
His background in film-making and field recording techniques provided the building blocks for his distinctive, strangely organic sound, which also takes in the influences of Musique Concrete and Drum & Bass along the way.
Andy regularly uses recordings of insects in his work. This piece, titled ‘Leafhoppers’, has been created entirely from the sounds of Leafhopper insects recorded by the Entomology department at Amgueddfa Cymru - National Museum Wales.
Andy has used many audio-processing techniques to enhance, stretch, distort and warp some of the source sounds into this piece.
Andy has an EP called ‘Andy Wheddon & Friends’ coming out in August on Brighton label Concrete Plastic (concreteplastic.co.uk) which uses a photograph of a fly, taken by James Turner of the Museum, as the cover artwork.
[image: Cicadella viridis]
Leafhoppers and planthoppers are among the most abundant group of insects. They all feed from plant tissue using their piercing and sucking mouthparts, and many are important pests of crop plants spreading diseases during their feeding.
Many of the crops most affected by planthopper and leafhopper-borne diseases are those which significantly impact subsistence farmers in the developing world, including coconut, rice, potato, maize, and sugarcane.
A 3 year research project currently being undertaken at Amgueddfa Cymru - National Musuem Wales aims to provide a comprehensive and accessible web-based guide to the leafhopper and planthopper vectors of phytoplasma, bacteria and virus diseases, aimed at both professional use and workers in developing countries seeking to find accurate information on identification.
Additional research into the songs produced by some members of this insect group, such as the genus Oncopsis, is also being undertaken in conjunction with researchers at the Museum Fur Naturkunde, Berlin.
All leafhoppers and planthoppers produce substrate transmitted acoustic signals in contrast to the loud and prominent airborne songs of Cicadas. Calls of leafhoppers and planthoppers consist usually of pulses with characteristic patterns of amplitude modulation. The vibrations are transmitted to the plant substrate through the feet. One of the main purposes of these so called songs is to attract and find mates for reproduction.
Oncopsis leafhoppers on birch trees are difficult to identify. Investigations (using morphological and acoustic techniques) showed that the species Oncopsis flavicollis consists of at least three sibling species. No recent taxonomic work has been carried out on these sibling species, and nothing was known on the distribution and the songs from European populations so far. Recent results have proved the occurrence of the three types of the nominal species O. flavicollis in several parts of Europe (France, Italy, Russia, Spain, Switzerland, United Kingdom).