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The Spring Widow (''Tarsocera cassus'') is a butterfly of the Nymphalidae family. It is found in South Africa. The wingspan is 42–52 mm for males and 50–57 mm for females. Adults are on wing from September to December (with a peak in October or November). There is one generation per year〔Woodhall, S. Field Guide to Butterflies of South Africa, Cape Town: Struik Publishers, 2005.〕 The larvae feed on various Poaceae species, including ''Lolium temulentum'' and ''Haparrhenia hirta''. ==Subspecies== *''Tarsocera cassus cassus'' (northern Cape south to the south-western parts of the West Cape) *''Tarsocera cassus outeniqua'' Vári, 1971 (Little Karoo and the south-eastern part of the West Cape) 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「Tarsocera cassus」の詳細全文を読む スポンサード リンク
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