Description of a new species of Neorhinotora Lopes, 1934 (Diptera: Heleomyzidae) from Central America.

A new species of Neorhinotora Lopes, 1934 (Diptera, Heleomyzidae) is described: Neorhinotora elsalvadorensis sp. nov., from El Salvador, Central America, with illustrations of external and internal morphological characters and update of the identification key.

A taxonomic synopsis of Chrysomydas Wilcox, Papavero amp; Pimentel (Diptera: Mydidae: Mydinae), with first bionomic records for the genus and description of a new species from Brazil.

Chrysomydas Wilcox, Papavero Pimentel, 1989 (Diptera, Mydidae, Mydinae, Stratiomydina), is a poorly known monotypic genus, with the type-species, C. nitidulus (Olivier, 1811), recorded from Brazil, French Guiana, Guyana, and Suriname. The present work aims to provide an updated diagnosis for the genus and type-species, C.

A new Mapinguari Papavero & Wilcox (Diptera, Mydidae, Mydinae) from Minas Gerais State, Brazil.

Mapinguari Papavero & Wilcox, 1974 (Diptera, Mydidae, Mydinae) is a very rare monotypic genus, with the type-species, M. politus (Wiedemann, 1828), occurring exclusively in Amazonia. With the description of Mapinguari uai sp.

Review of Rhinotora (Diptera, Heleomyzidae) with description of a new species and key to all known heleomyzid species from Brazil.

Rhinotora Schiner, 1868, are a rare group of flies, previously including seven species distributed in the Americas, six of them occurring in Brazil. This work aims to provide a taxonomic review for Rhinotora Schiner, with addition of two species in the genus: Rhinotora fonsecai, which is transferred back to its original genus, and R. paschoali sp.

FAMILY THEREVIDAE.

This catalogue presents the Colombian fauna of stiletto flies (Diptera: Therevidae). According to available literature, only four species, distributed in three genera, are registered to this country, Ataenogera brevicornis (Bromley, 1934), Brachylinga punctifrons (Kröber, 1914), B. xanthoperna Irwin and Webb, 1991 and Chromolepida pruinosa (Coquillett, 1904).

FAMILY MYDIDAE.

Mydidae (Diptera, Asiloidea) are a relatively rare group of flies, and the knowledge on the Colombian mydids is very poor. According to available literature, only two species are registered to this country, Protomydas coerulescens (Olivier, 1811) and P. rubidapex (Wiedemann, 1830).

Review of the Gauromydas giant flies (Insecta, Diptera, Mydidae), with descriptions of two new species from Central and South America.

Gauromydas Wilcox, Papavero & Pimentel, 1989 are giant flies, and include the largest fly known, G. heros (Perty, 1833). This genus was originally erected to group four Neotropical species, namely G.

Taxonomic revision of Pseudorhopalia Wilcox & Papavero, 1971 (Insecta, Diptera, Mydidae, Rhopaliinae), with description of a new species from the Brazilian Amazon .

The previously monotypic genus Pseudorhopalia Wilcox & Papavero, 1971 is here revised, with description of a new species, Pseudorhopalia manauara, sp. n. The type-species, P.