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''Milesia crabroniformis'' is a species of 'Flower Flies' or hoverflies belonging to the family Syrphidae subfamily Eristalinae. This species is mainly present in Belgium, France, Greece, Italy, Spain, Portugal, Switzerland, in the Near East and in North Africa. These rather uncommon hoverflies are the largest among the European species. The adults grow up to long and can mainly be encountered from June through October in evergreen and deciduous forests (''Quercus'' and ''Fagus'' species), feeding on nectar of flowers of several plants (Apiaceae species, ''Sambucus ebulus'', ''Hedera'' species, ''Cirsium'' species, etc.). They mimic the hornet species ''Vespa crabro'' (hence the Latin name ''crabroniformis'', meaning ‘hornet-formed’). In this species eyes of males are holoptic, although they meet along the dorsal length of the head in a very low point of contact Their larvae develop on decaying wood and rotting cavities of old ''Fagus'' and ''Quercus'' species. ==References== * Van Veen M. P. - Hoverflies of Northwest Europe, Identification Keys to the Syrphidae, 2004 - Utrecht KNNV Publishing, page 145 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「Milesia crabroniformis」の詳細全文を読む スポンサード リンク
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