Four new species of Heilus Kuschel 1955 (Curculionidae, Molytinae, Molytini, Hylobiina) from Brazil.

Four new species, namely Heilus rosadonetoi Lira, De Sousa & Marques sp. nov., Heilus christinae Lira, De Sousa & Marques sp.

Two new Brazilian species in the Coelocephalapion nodicorne species-group (Brentidae, Apioninae, Apionini, Oxystomatina) associated with Euphorbiaceae.

Two new Brazilian species of the genus Coelocephalapion Wagner, 1914 placed in the C. nodicorne species-group (Brentidae: Apioninae) reared from Euphorbiaceae are described and illustrated: Coelocephalapion paleariae sp. n.

Pygidiapion De Sousa amp; Mermudes, a new genus of Apioninae (Brentidae: Apioninae: Apionini) associated with Fabaceae from Brazil, with the description of a new species and transfer of Apion zikani Heller, 1922.

The genus Pygidiapion De Sousa Mermudes gen. n., described and illustrated here, includes two species from Brazil: the type-species Pygidiapion zeppelinii De Sousa Mermudes sp.

A review of the South American species of Heilus Kuschel, 1955 (Curculionidae: Molytinae: Molytini: Hylobiina) with emphasis on those from Brazil.

The fourteen described South American species of Heilus (Curculionidae, Molytinae, Molytini, Hylobiina) are reviewed for the first time. Eleven species are redescribed based on specimens (almost exclusively from Brazil) examined by us: H. bistigma (Hustache, 1938), H.

Two new Brazilian species of Neapion Alonso-Zarazaga, 1990 subgenus Neotropion Alonso-Zarazaga, 1990 with a key to South American species (Brentidae: Apioninae).

Two new Brazilian species of the genus Neapion Alonso-Zarazaga, 1990 subgenus Neotropion Alonso-Zarazaga, 1990 (Brentidae: Apioninae) are described and illustrated: Neapion (Neotropion) marquesae sp. n. (Type locality: Brazil, Mato Grosso) and Neapion (Neotropion) diringsi sp.