Descriptions of a genus and two new species of Sarcophagidae from Peru.

Based on scanning electron microscope (SEM) estudies, the male genitalia of three species of Ravinia and two species of Chaetoravinia (Diptera: Sarcophagidae, subtribe Raviniina) are described and compared.

Sinopiella rotunda n. sp. from Brasília, DF, Brazil, is described.

This is a list of the Sarcophagidae flies collect in the Maracá Island, Uraricoera river, Roraima, Brasil.

The male genitalia of nine species of Sarcophagidae (Diptera) - Goniophyto honsuensis Rohdendorf, 1962, Tricharaea brevicornis (Wiedemann, 1830), Chaetoravinia derelicta (Walker, 1852), Austrohartigia spinigena (Rondani, 1864), Chrysagria duodecimpunctata Townsend, 1935, Boettcheria bisetosa Parker, 1914, Lipoptilocnema lanei Townsend, 1934, L. crispina (Lopes, 1938) and Euboettcheria alvarengai Lopes & Tibana, 1982 - were examined by scanning electron microscope (SEM) and the main morphological features are descirbed.

O ovo de Sarcodexia lambens (Diptera: Sarcophagidae) é descrito a nível de microscopia eletrônica de varredura.

The egg of Sarcodexia lambens (Diptera: Sarcophagidae) is described on the basis of scanning electron microscopy.

As genitálias dos machos de Oxyvinia excisa (Lopes), Oxysarcodexia tornax (Walker), O. fluminensis Lopes, sarcodexia lambens (Wiedemann), Peckia chrysostoma (Wiedemann) e Liopygia ruficornis (Fabricius) foram estudadas com base em fotografias de microscópio de varredura. Alguns detalhes importantes foram evidenciados por este método.

Male genitalia of Oxyvinia exicisa (Lopes), Oxysarcodexia thomax (Walker), O. fluminensis Lopes, Sarcodexia lambens (Wiedemann), Peckia chrysostoma (Wiedemann) and Liopygia ruficornis (Fabricius) were studied based on scanning electron microscope photography. Some important details were evidentiated with this method.

The first instar larvae of Sarcodexia lambens (Wiedemann, 1830) and Peckia chrysostoma (Wiedemann, 1830) dissected from females reared in laboratory, are described under scanning electron microscope (SEM).

Cattasoma mcalpinei n. sp., Sarothromyia indivisa Lopes, Tolucomyia schrameli (Dodge), and Encelimyia palenguensis n. sp. do México; Aphelomyia welchi (Hall) de Jamaica; Thomazomyia adunca n. sp. do Equador; Encelimyia aurigena lopes do Chile e thomazomyia fluminensis n. sp. do Brasil são estudadas.

Cattasoma mcalpinei n. sp., Sarothromyia indivisa Lopes, Tolucamyia schrameli (Dodge) and Eucelimyia palenguensis n. sp., from México; Aphelomyia welchi (Hall) from Jamaica; Thomazomyia adunca n. sp. from Ecuadro; Eucelimyia aurigena Lopes from Chile and Thomazomyia fluminensis n. sp. from Brazil, are studied.

Espécies dos gêneros Notochaeta, Weyrauchimya e Udamopyga são redescritas; novas espécies deste último gênero, de Cuculomyia e Dexomyophora são descritas, todas provenientes da Província Biológica de Yungas, no Equador.

Species of the genera Notochaeta, Weyrauchimyia, and Udamopyga are redescribed; new species of the latter genus, of Cuculomyia and of Dexomyophora are proposed, all from the Yungas Biological Province of Ecuador. Key to species of Udamopyga is given.

Duas espécies de Pessoamyia do Peru a duas espécies de Emblemasoma do México e de Costa Rica são propostas; é dada uma chave para determinação das espécies de Emblemasomini até agora descritas.

Two new species of Pessomyia from Peru and two species of Emblemasoma from Mexico and Costa rica are proposed; key to species of Emblemasomini is given.