Description of two new species of Palpomyia Meigen (Diptera: Ceratopogonidae) from the Brazilian Amazon

Resumo . Duas novas especies de insetos predadores e bioindicadores da qualidade da agua do genero Palpomyia , grupo distincta , sao descritas e ilustradas baseadas em especimes machos. Os imaturos das especies Palpomyia amazonensis sp. nov. e Palpomyia lanceolata sp. nov. foram coletados em armadilhas ovitrampas e criados em laboratorio ate adultos. Ambas novas especies sao semelhantes a Palpomyia guyana Clastrier, 1992 e Palpomyia turnbowi Grogan et al. , 2013 e diferem de Palpomyia versicolor Macfie, 1939, unica especie do grupo distincta descrita na Amazonia Brasileira. Com as duas descricoes, foram aumentadas para tres o numero de especies para a Amazonia e 32 para o Brasil. Descricao de duas novas especies de Palpomyia Meigen (Diptera: Ceratopogonidae) da Amazonia brasileira Abstract. Two new Amazonian predaceous midge of the genus Palpomyia , from the distincta group, were described based on male specimens. This genus is an important bioindicator of aquatic environments. The immatures of Palpomyia amazonensis sp. nov. and Palpomyia lanceolata sp. nov. were collected with ovitraps and reared in laboratory until adulthood. Both new species are similar with Palpomyia guyana Clastrier, 1992 and Palpomyia turnbowi Grogan et al. , 2013 but differs from Palpomyia versicolor Macfie, 1939, the unique species described in Brazilian Amazon until now. With the description of these new species we increase to three the representative species of the distincta group in the Brazilian Amazon and to 32 the number of Brazilian species of Palpomyia .