- walnut husk fly
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any of several fruit flies, as Rhagoletis completa, the larvae of which feed on and discolor walnut husks.
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Universalium. 2010.
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Universalium. 2010.
walnut husk fly — noun : any of several trypetid flies (especially Rhagoletis completa and R. suavis) whose larvae live in the husks of black and other walnuts * * * any of several fruit flies, as Rhagoletis completa, the larvae of which feed on and discolor… … Useful english dictionary