| eristalis | <entomology> A genus of dipterous insects whose young (called rat-tailed larvae) are remarkable for their long tapering tail, which spiracles at the tip, and for their ability to live in very impure and salt waters; also called drone fly. Source: Websters Dictionary (01 Mar 1998) |
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| Eristalis |
a genus of flies, the hover flies, of the family Syrphidae. E. te´nax is the drone fly; it breeds in drains and its maggots (rat-tail maggots) occasionally cause intestinal or nasal myiasis.
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