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''Arethusana'' is a butterfly genus from the subfamily Satyrinae of the brush-footed butterfly family (Nymphalidae). It is composed of only one species, ''Arethusana arethusa'', the False Grayling, which can be found as far west as Morocco and as far eastward as SW. Siberia and N. Tian Shan. The wingspan is 44–48 mm and the length of the forewings is 21–25 mm. Adults are on wing from July to September.〔(Captain's European Butterfly Guide )〕 The larvae feed on various grasses, including ''Festuca'', ''Bromus erectus'', ''Dactylis'' and ''Poa'' species. ==Subspecies== *''Arethusana arethusa arethusa'' *''Arethusana arethusa aksouali'' Wyatt, 1952 (western Morocco: Toubkal Massif) *''Arethusana arethusa heptapotamica'' (Stauder, 1924) (Tian Shan, Dzhungarsky Alatau, Saur, Tarbagatai) *''Arethusana arethusa pontica'' Heyne, ()) (Caucasus, Armenian Highland) 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「Arethusana」の詳細全文を読む スポンサード リンク
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