mud dauber
US /ˈmʌd ˌdɑː.bər/
UK /ˈmʌd ˌdɑː.bər/

1.
vespa-oleira, vespa-da-lama
any of various solitary wasps that construct nests of mud, typically in sheltered locations, and provision them with paralyzed spiders or insects for their larvae to feed on
:
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A mud dauber built its nest under the eaves of the house.
Uma vespa-oleira construiu seu ninho sob o beiral da casa.
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We watched the mud dauber meticulously gather mud for its construction.
Observamos a vespa-oleira coletar meticulosamente lama para sua construção.