
A new species of Plebeia, the second largest genus of stingless bees in the Neotropical region, is described from eastern Brazil. Plebeia grapiuna sp. nov., known only from the lowland forests of southern Bahia, is most similar to P. lucii Moure, a species recently described from Minas Gerais. The lack of yellow marks and the smoother integument of the frons and mesoscutum in P. grapiuna sp. nov. distinguish them. Main features of the nesting habits of the new species are described and illustrated.Uma nova espécie de Plebeia, o segundo maior gênero de meliponíneos na região Neotropical, é descrita do leste do Brasil. Plebeia grapiuna sp. nov., conhecida apenas das florestas de terras baixas do sul da Bahia, é semelhante a P. lucii Moure, uma espécie recentemente descrita de Minas Gerais. A ausência de manchas amarelas e o integumento menos rugoso da fronte e do mesoscuto em P. grapiuna sp. nov. distinguem as duas espécies. Características principais do hábito de nidificação da nova espécie são descritas e ilustradas.
stingless bees, Abelhas sem ferrão, QL1-991, Meliponina, nesting biology, Floresta Atlântica, Atlantic forest, biologia da nidificação, Neotropical region, região Neotropical, Zoology
stingless bees, Abelhas sem ferrão, QL1-991, Meliponina, nesting biology, Floresta Atlântica, Atlantic forest, biologia da nidificação, Neotropical region, região Neotropical, Zoology
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