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The Japanese Silk Moth or Japanese Oak Silkmoth (''Antheraea yamamai'', Japanese: ) is a moth of the Saturniidae family. It is endemic to Japan, but has been imported to Europe for silk production and is now found in South-Eastern Europe, mainly in Austria, North-Eastern Italy and the Balkan. It seems to be spreading north and a population near Deggendorf and Passau (Bayern) has been reported.〔(【引用サイトリンク】url= http://www.lwf.bayern.de/veroeffentlichungen/lwf-aktuell/55/lwf-aktuell_55-25.pdf )〕 It has been hybridized artificially with ''Antheraea polyphemus'' of North America.〔See Antheraea polyphemus, Gary Botting〕 The silk moth (''Antheraea yamamai'') has been cultivated in Japan for more than 1000 years. It produces a naturally white silk but does not dye well, though it is very strong and elastic. It is now very rare and expensive.〔(Information sheet from United Nations FAO )〕 The wingspan is . Adults are on wing from August to September in one generation depending on the location. The larva mainly feed on ''Quercus'' species, but have also been reported on ''Fagus sylvatica'', ''Castanea sativa'', ''Carpinus'', ''Rosa'' and ''Crataegus''. ==Subspecies== *''Antheraea yamamai yamamai'' *''Antheraea yamamai bergmani'' Bryk, 1949 *''Antheraea yamamai titan'' Mell, 1958 *''Antheraea yamamai ussuriensis'' Schachbazov, 1953 *''Antheraea yamamai superba'' Inoue, 1964 (Taiwan) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Antheraea yamamai」の詳細全文を読む スポンサード リンク
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