Um novo gênero de ochlerini do sul do Brasil (Heteroptera, Pentatomidae, Discocephalinae)

The new monotypic genus Ocellatocoris and its type species Ocellatocorisdasys, sp. nov. are described from Santa Catarina, Brazil.

Novos táxons e notas sobre Cerambycidae (Coleoptera) neotropicais

New taxa described, Cerambycinae: Ibidionini, Cecaibidion gen. nov., type species, C. bivittatus sp. nov. from Panama; Acangassuini trib. nov., Acangassu gen. nov., type species, A. diminuta sp. nov. from Brazil (Rio de Janeiro); Necydalopsini: Eucharassusflavotibiale sp. nov. from Colombia (Valle) and E. confusus sp. nov. from Venezuela (Distrito Federal). Lamiinae: Onciderini, Iaquira gen. nov., type species, I.viridis sp. nov. from Brazil (Espírito Santo); Phacellini, Phacellusplurimaculatus sp. nov. from Brazil (Amazonas). Notes on Phacellusfulguratus Monné, 1979 and a key to the species of Eucharassus are added.

Dos especies nuevas de Rhabdepyris (Hymenoptera, Bethylidae) de Colombia

Rhabdepyris (Chlorepyris) humboldti sp. nov. and R. (C.) tarapachensis sp. nov. from Colombia are described and illustrated. These species are specially peculiar by having pectinate antennae, which is the first report of this character for the genus.

Two new species of the Drosophila serido sibling set (Diptera, Drosophilidae)

Drosophila antonietae sp. nov. and D. gouveai sp. nov. are members of the D. buzzatii cluster of the D. repleta species group of the genus Drosophila. They can be distinguished from their cryptic species, D. borborema Vilela & Sene, 1977, D. koepferae Fontdevila & Wasserman, 1988, D. serido Vilela & Sene, 1977, and D. seriema Tidon-Sklorz & Sene, 1995 by morphological, genetic and ecological criteria.

Descrição de uma espécie nova de Thysanopsis (Diptera, Tachinidae)

Thysanopsis guimai sp. nov. from Brazil (Mato Grosso) is the second species described for this genus. Redescription of Thysanopsis albicauda Townsend, 1917, and new definition for the genus are done.

Notas sobre Pseudevoplitus (Heteroptera, Pentatomidae) e descrição de duas espécies novas

Two new species of the Neotropical genus Pseudevoplitus Ruckes,1958 are described, P. amazonicus Grazia & Greve, sp. nov. and P. roraimensis Grazia & Greve, sp. nov. both from the Brazilian Amazonia, with emphasis on genital characters. Additions to the generic description and a new key to the species are presented.

Revisão do gênero Pteracantha (Coleoptera, Cerambycidae, Cerambycinae, Trachyderini)

The genus Pteracantha Newman, 1838 is revised and P. agrestis sp. nov. is described from Brazil (Minas Gerais).

Espécie nova de Amazonina de Minas Gerais, Brasil (Blattaria, Blattellidae)

Amazonina tresmariensis sp. nov. from Três Marias, Minas Gerais, Brazil is described, and the male genitalia illustrated. Some ecological notes are presented.

A new species of Ibitermes (Isoptera, Termitidae) from the Atlantic forest, northeastern Brazil

The sterile castes of Ibitermes inflatus sp. nov. from Rio Tinto, State of Paraíba, Brazil are described and illustrated. This is the first record of a species of Ibitermes from the Brazilian northeast and from the Atlantic Forest biome. The absence of ridges in the molar plate of the left mandible and the presence of granules of sand and silt mixed with organic matter in advanced stage of decomposition in the digestive tube of workers suggest that the species is a typical humus feeding termite.

Revisão taxonômica do gênero Homodiaetus (Teleostei, Siluriformes, Trichomycteridae)

The genus Homodiaetus Eigenmann & Ward, 1907 is revised and four species are recognized. Its distribution is restricted to southeastern South America, from Uruguay to Paraguay river at west to the coastal drainages of Rio de Janeiro State, Brazil. Homodiaetus is currently distinguished from other genus of Stegophilinae by the combination of the following characters: origin of ventral-fin at midlength between the snout tip and the caudal-fin origin; opercle with three or more odontodes; and gill membranes confluent with the istmus. Homodiaetus anisitsi Eigenmann & Ward, 1907, is diagnosed by the caudal-fin with black middle rays, margin of upper and lower procurrent caudal-fin rays with dark stripes extending to the caudal-fin, and 3-6 opercular odontodes; H. passarellii (Ribeiro, 1944) with 6-7 opercular odontodes, 21-24 lower procurrent caudal-fin rays and 23-26 upper procurrent caudal-fin rays; H. banguela sp. nov. with 9 opercular odontodes, 17-19 lower procurrent caudal-fin rays, 17-22 upper procurrent caudal-fin rays, reduction of fourth pharyngobranchial with only three teeth and untoothed fifth ceratobranchial; and H. graciosa sp. nov. with 5-6 dentary rows, 7-9 opercular odontodes and 16-23 upper procurrent caudal-fin rays.

Uma espécie nova de Schwarzula da Amazônia (Hymenoptera, Apidae, Meliponini)

Schwarzula coccidophila sp. nov., a tiny Amazonian stingless bee, that attends scale insects (Cryptostigma Ferris, 1922, Coccidae) in its nest, is described. It is distinguished from Schwarzula timida (Silvestri, 1902), the only other species of the genus, mainly by the malar area longer than diameter of 3rd flagellomere, and the denser plumose pilosity. Additional records of S. timida is presented.

Novo gênero de Anacolini e descrição dos machos de Myzomorphus Flavipes e Poekilosoma Carinatipenne (Coleoptera, Cerambycidae, Prioninae)

The new genus Hovorelus and its type-species, H. splendidus sp. nov., are described from Peru. The males of Myzomorphus flavipes Galileo, 1987 and Poekilosoma carinatipenne Lane, 1941, both with sexual dimorphism, are described for the first time.

Novos táxons neotropicais de Desmiphorini (Coleoptera, Cerambycidae, Lamiinae)

New species described from Brazil: Curuapira tuberosa (Espírito Santo); Stereomerus maculatus (Bahia); Gyrpanetes oryba (Espírito Santo); Desmiphora (D.) santossilvai (Pará); Desmiphora (D.) uniformis (Bahia). Icublabia gen. nov., type-species, I. multispinosa sp. nov. from Ecuador (Napo) are described. Curuapira exotica Martins & Galileo, 1998, originally described from Venezuela, is recorded from Brazil (Amazonas, Rondônia and Mato Grosso).

Cerambycidae (Coleoptera) da Colômbia. V. Lamiinae com unhas tarsais divergentes

New species described from Colombia: Amphicnaeia interrupta sp. nov., from Cauca; Adetus tayronus sp. nov., from Magdalena; A. aberrans sp. nov., from Santander; Parmenonta albosticta sp. nov., from Cundinamarca; Jamesia bella sp. nov., from Cauca. New records for nine species of Colombian Lamiinae (Apomecynini, Agapanthiini, Onciderini) are given.

Taxonomy of Epyris (Hymenoptera, Bethylidae) from Paraná, Brazil

Epyris rotundus sp. nov. and Epyris cochlear sp. nov., from southern Brazil, are described and illustrated. Epyris longus Corrêa & Azevedo, 2002, E. argentinicus Evans, 1969, E. angustatus Evans, 1969, E. perpolitus Evans, 1969, E. parallelus Evans, 1969, E. distinctus Corrêa & Azevedo, 2002, E. variatus Corrêa & Azevedo, 2002, E. jugatus Evans, 1969, E. intermedius Evans, 1969 and E. depressigaster Evans, 1966 are recorded for the first time to Paraná, Brazil.