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''Xestia speciosa'' is a moth of the Noctuidae family. It is found in northern Europe, including Fennoscandia, the Baltic region, parts of Russia and further through northern Asia to the Pacific Ocean and Japan. It is also found in the mountainous areas of central and southern Europe. It is also present in north-western North America. Some authors treat ''Xestia apropitia'' as a valid species, while Mikkola, Lafontaine and Kononenko (1996) placed it as a subspecies of ''Xestia speciosa''. The wingspan of ssp. ''speciosa'' is 38–50 mm. Subspecies ''arctica'' has a wingspan of 36–45 mm. Adults are on wing from June to August in one generation. The larvae feed on various low-growing plants, including ''Vaccinium myrtillus'', ''Lonicera nigra'' and ''Betula nana''. ==Subspecies== Note that only ''speciosa'', ''arctica'' and ''modesta'' are confirmed subspecies. The other listed subspecies need further study to confirm their status. ''Xestia viridescens'' is sometimes included here as another subspecies. ;Generally accepted *''Xestia speciosa speciosa'' (Hübner, 1813) (Germany) *''Xestia speciosa modesta'' (Alps) *''Xestia speciosa arctica'' (Zetterstedt 1839) (northern Europe, northern Canada south to the northern parts of the mountains in Alberta) ;Disputed *''Xestia speciosa aegrota'' (Alpheraky 1897) (Siberia, northern Mongolia) *''Xestia speciosa aklavikensis'' (Nearctic) *''Xestia speciosa apropitia'' (Benjamin, 1933) (Colorado) *''Xestia speciosa baltica'' (Valle 1940) *''Xestia speciosa janae'' Herz, 1903 *''Xestia speciosa livalis'' (Nearctic) *''Xestia speciosa mixta'' *''Xestia speciosa rybatchiensis'' Kotzsch 1934 *''Xestia speciosa ussurica'' (north-eastern Siberia to Korea and Japan) 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「Xestia speciosa」の詳細全文を読む スポンサード リンク
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