On the Brazilian Prosierola (Hymenoptera, Bethylidae), with description of a new species from Amazonas, Brazil

Prosierola rotunda sp. nov. from northern Brazil is described and illustrated. Additional specimens of P. lata (Cameron, 1888) were examined with species variation analyzed and new distribution data are added.

É descrita e ilustrada Prosierola rotunda sp. nov. do norte do Brasil. Foram examinados novos espécimes de P. lata (Cameron, 1888), com a análise das variações morfológicas e inclusão novos dados de distribuição.