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Melangyna viridiceps
''Melangyna viridiceps'' is an Australian hoverfly, known as the common hover fly.〔(【引用サイトリンク】title=Common hover fly ''Melangyna viridiceps'' )〕 It is found widely across Eastern Australia. It is one of the two most common hoverflies in Australia, alongside ''Simosyrphus grandicornis'', with which it has often been confused, but can be distinguished by its all black thorax. The adult flies feed on pollen and nectar which they gather from flowers, while the larvae feed on aphids.〔 (Note that while the text is correct, the photos are misidentified specimens of ''Simosyrphus'')〕
Some sources indicate that the species is also present in New Zealand, either on the Kermadec Islands only, or on both the Kermadecs and the mainland. Most recent sources,〔For example the (''New Zealand Organisms Registry'' ) does not list it for its New Zealand Regin (which includes the Kermadec Islands).〕 however, do not record this species as being present outside of Australia. Miller's 1921 mention for the Kermadec was found to be a misidentification for ''Simosyrphus grandicornis'',〔 and Macfarlane ''et al.''〔 failed to cite specimens or published reports for their claim of the species' presence in the Kermadec.
== References ==
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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