Eristalis tenax lays its eggs near the surface of stagnant water or decaying organic matter, and its larvae are aquatic and feed on decaying matter.
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Eristalis tenax lays its eggs near the surface of stagnant water or decaying organic matter, and its larvae are aquatic and feed on decaying matter.
The fly Eristalis tenax is widespread worldwide: its larva occurs on every continent except Antarctica.
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Approved version OWNER-REVIEW-20261108T074618303 · last approved 8 November 2026