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Grapeleaf skeletonizer
The grapeleaf skeletonizer (''Harrisina americana'') is a moth in the family Zygaenidae. It is widespread in the eastern half of the United States,〔(MPG )〕 and commonly noticed defoliating grapes, especially of the Virginia creeper ''(Parthenocissus quinquefolia)''. The Western grapeleaf skeletonizer, ''Harrisina metallica'' is very similar to and slightly larger than ''H. americana,'' but their distributions are different.
Members of this family all produce HCN, hydrogen cyanide, a potent antipredator toxin.〔Wikipedia: Zygaenidae〕
==Identification==
The adult has narrow black wings, usually held away from the body at rest, and a reddish collar. The wingspan is 18-28 mm, the length 8-12 mm.〔(BugGuide )〕
The larva has a dark head; the body is yellow with a complete black band across each abdominal segment.〔 The larvae can reach up to 15 mm in length.〔Wagner〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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