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''Galtara extensa'' is a moth of the Arctiidae family. It is found on the Comoros and in Madagascar.〔(afromoths )〕 ==Biology== The eggs of this species have a diameter of 0.8 mm and 0.75 mm in height (dome shaped). They are of cream to white colour when deposited and turn black on the day before hatching. They are laid singly or in batches underside of the leaves. The duration of eggs is 5–6 days. The larvae feed at night, their head is smooth, the body is covered with dark, plumose setae. At maturity they reach a size of 26.4 mm. Pupae is abouth half the length of the larvae, the pupal stage is of 11–12 days. The adults of this moth have 8 longitudinal bands on the forewings. The hole life span of this moths is 41 days, producing up to 9 generation in a year under laboratory conditions. The larvae of this moths feed on fireweed ''Senecio madagascariensis'' (an ''Asteraceae''), a plant also native to Madagascar that had been introduced to Australia and Hawaii, where it has become an invasive pest.〔(Reimer, 2008. ''Field Release of Secusio extensa (Butler) (Lepidoptera: Arctiidae), for Biological Control of Fireweed, ''Senecio madagascariensis'' Poiret (Asterales: Asteraceae), in Hawaii. - Hawaii Departement of Agriculture. )〕 At a lesser grade they also feed on ''Delairea odorata'', ''Senecio vulgaris'', ''Crassocephalum crepidioides'', ''Emilia fosbergii'', ''Erechtites hieracifolia'' and ''Helianthus annuus'' (Sunflowers).〔(Ramadan, Murai & Johnson, 2010. ''Host range of Secusio extensa (Lepidoptera: Arctiidae), and potential for biological control of Senecio madagascariensis (Asteraceae)''. Journal of Applied Entomology. )〕 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「Galtara extensa」の詳細全文を読む スポンサード リンク
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