Definition of sawfly
: any of numerous hymenopterous insects (superfamily Tenthredinoidea and especially family Tenthredinidae) with the female usually having a sawlike ovipositor and with the larva resembling a plant-feeding caterpillar
Recent Examples of sawfly from the Web
The wormlike larvae of the larch sawfly stripped almost all the adult trees of their needles in the mid to late 1990s.
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First Known Use of sawfly
Learn More about sawfly
Britannica.com: Encyclopedia article about sawfly
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