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Butler's ringlet (''Erebiola butleri'') is an elusive New Zealand endemic butterfly, discovered in 1879 by John D Enys at the alpine pass at the head of the Rakaia River. It is the only member of the genus ''Erebiola''. ''Erebiola'' is derived from “erebus”, the ancient Greek world of darkness between Earth and Hades, while the species name, ''butleri'', was after Mr A.G. Butler of the British Museum who played a major role in early descriptions of New Zealand butterflies. Its Māori name is ''pepe pouri'', which means dark moth, and shares the name with the Black Mountain ringlet and the forest ringlet butterfly.〔(【引用サイトリンク】url=http://www.monarch.org.nz/monarch/species/butterflies/ )〕 == Description == Butler’s ringlet have a wingspan of 35-43mm, with a 40mm average for males and a 37mm average for females. Both males and females are smoky brown, though males tend towards the richer browns while the females tend towards the paler browns. The underside of the hindwing has wedge-shaped silvery-white marks. Both the underside and the topside of the wings have eye spots at the distal-most ends, surrounded by reddish-brown shading. There is variation between individuals in the number of eye spots, the extent of the reddish-brown colouring around the eye spots, and the silvery-white markings on the undersides of the hindwings. The egg is ivory with vertical ribbing. The larvae is similar coloured from head to tail, being yellow-brown with dark and light lateral striping. A fully grown larvae is roughly 20mm long. The pupa is grey and cream with fine black spotting along the abdomen, changing to a brown on the rest of the body. The style of pupation is unknown. 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「Erebiola butleri」の詳細全文を読む スポンサード リンク
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