Two new species of Culicoides Latreille of the Neotropical subgenus Mataemyia Vargas are described and illustrated based on female specimens from Juruti, Pará, Brazil and compared with their similar congeners. This paper also presents a diagnosis of the subgenus Mataemyia and a systematic key for the identification of the 19 species of the subgenus.

Two new species of Culicoides Latreille of the subgenus Haematomyidium Goeldi are described and illustrated based on female specimens from Pará, Brazil. The new species are compared with their similar congeners.

A new species of the Culicoides reticulatus species group, Culicoides kuripako Felippe-Bauer, is described and illustrated based on females and male specimens from the states of Amazonas and Pará, Brazil. The new species is compared with its similar sympatric congener, Culicoides paucienfuscatus Barbosa.

O presente trabalho teve como objetivo fazer o levantamento das espécies de ceratopogonídeos hematófagos (maruins) em áreas costeiras do Estado do Pará. Foram amostrados dois pontos, um no litoral (Praia do Crispim/Marapanim) e outro no estuário do rio Pará (Outeiro/Belém). As coletas foram feitas mensalmente em 2003 de abril a outubro em Outeiro e nos meses de junho, julho, setembro e outubro em Marapanim. Foram utilizados os métodos de isca humana e armadilha tipo CDC. Foram coletados 4003 exemplares de maruins distribuídos em 18 espécies de Culicoides Latreille e uma de Leptoconops Skuse, sendo L. brasiliensis (Lutz) a única espécie comum aos dois pontos de coleta. As duas espécies mais abundantes coletadas em Outeiro foram C. batesi Wirth & Blanton e C. denisae Clastrier, enquanto em Marapanim foram C. maruim Lutz e C. phlebotomus (Williston).

The present study surveyed the species of hematophagus biting midges in coastal areas of Para State, Brazil. Two collecting sites were chosen, one a beach on the coast (Praia de Crispim, near Marapanim) and another in the Para River estuary (Outeiro Island, near Belem). Collections were made monthly in 2003, from April to October in Outeiro and the months of June, July, September, and October in Marapanim. Human bait and CDC traps were used. In total 4003 specimens were collected: 18 species of Culicoides Latreille and one of Leptoconops Skuse. L. brasiliensis (Lutz) was the only species common to both sites. The two most abundant species in Outeiro were C. batesi Wirth & Blanton and C. denisae Clastrier, while in Marapanim these were C. maruim Lutz and C. phlebotomus (Williston).