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syrphus fly
CIDE DICTIONARY
syrphus fly, [NL. Syrphus, the generic name, fr. Gr. , , a kind of winged insect.].
Any one of numerous species of dipterous flies of the genus Syrphus and allied genera. They are usually bright-colored, with yellow bands, and hover around plants. The larvæ feed upon plant lice, and are, therefore, very beneficial to agriculture. [1913 Webster]
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