Tenthredinoidea
plural noun
Ten·thre·di·noi·dea
| \ ˌten(t)thrədəˈnȯidēə\
Definition of Tenthredinoidea
: a superfamily (suborder Chalastogastra) of hymenopterous insects comprising the sawflies and being coextensive with Tenthredinidae in its broadest use
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