ルリハナアブ
ハエ目 ハナアブ科
体長 10～12ｍｍ
池などの水辺の花にやってきますが、あまり多くないようです。 幼虫は、水の中で腐った植物などを食べています。 成虫は、4月～9月に見られます。
日本の本州、四国、九州と中国大陸に分布します。三重県と京都府で、レッドデータブックの対象種になっています。 （写真）2020.8.30 小野市来住町
（写真）2018.5.28 明石市明石公園
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