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''Rutpela maculata'', the Spotted Longhorn, is a beetle species of ''flower longhorns'' belonging to the family Cerambycidae, subfamily Lepturinae. This beetle is widespread in most of Europe, in East Palearctic ecozone and in the Near East. Larvae are polyphagous in deciduous trees, mainly feeding on ''Picea abies'', ''Corylus avellana'', ''Fagus sylvatica'', ''Castanea sativa'' and ''Ostrya carpinifolia'', as well as on ''Quercus'', ''Carpinus'', ''Salix'', ''Alnus'', ''Populus'' and ''Betula'' species. The adults grow up to and can be encountered from May through August, completing their life cycle in two-three years. Adults only live two-four weeks. The head and pronotum are dark-brown, while elytra are yellowish, with black dots and stripes, rough imitations of wasps, which probably gives them some protection from birds. The adults are very common flower-visitors, especially Apiaceae species, feeding on pollen and the nectar. ==External links== * (Biolib ) * ( Cerambycoidea ) * (Cerambyx ) * (Fauna europaea ) 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「Rutpela maculata」の詳細全文を読む スポンサード リンク
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