Rove beetles of medical importance in Brazil (Coleoptera, Staphylinidae, Paederinae)

Rove beetles of medical importance in Brazil (Coleoptera, Staphylinidae, Paederinae). The rove beetles of the genus Paederus Fabricius, 1775 are the most important group within Coleoptera causing dermatitis around the world. The medical importance of Paederus depends on its toxic hemolymph released when these beetles are crushed on human skin. The effects are mainly dermatitis linearis and some sporadic cases of conjunctivitis. In Brazil seven species of Paederus are known to cause dermatitis: P. amazonicus Sharp, 1876, P. brasiliensis Erichson, 1840, P. columbinus Laporte, 1835, P. ferus Erichson, 1840, P. mutans Sharp, 1876, P. protensus Sharp, 1876 stat. rev., and Paederus rutilicornis Erichson, 1840. Paederus mutans and P. protensus are for the first time recorded as of medical importance, whereas the record of P. rutilicornis in Brazil is doubtful. All seven species are redescribed and a dichotomous key is provided. The geographic distributions of all species are documented. The results provided here include the most recent and relevant taxonomic revision of Paederus of the Neotropical region, the first identification key for Brazilian species and the increase of recorded species of medical importance in the world.

Bledius Leach from southern Brazil (Coleoptera, Staphylinidae, Oxytelinae)

Three species of Bledius Leach, 1819 are recognized from southern Brazil. A new species is described, B. hermani n. sp., from Paraná and Rio Grande do Sul States and B. fernandezi Bernhauer, 1939 is redescribed. The geographical distribution of B. bonariensis Bernhauer, 1912 and B. fernandezi are extended. A key to identification of Bledius from southern Brazil is also provided.

First record of the genus Myllaena Erichson from Brazil, description of a new species and annotated catalog of Myllaena species from the Neotropical region (Coleoptera, Staphylinidae, Aleocharinae)

The genus Myllaena Erichson, 1837, of the tribe Myllaenini Ganglbauer, 1895, is recorded from Brazil for the first time. A new species, Myllaena brasiliensis sp. nov., is described and illustrated; it is closely related to the insomnis species group, described from the Nearctic region. A short diagnosis of the genus and an annotated catalog of Myllaena species from the Neotropical region are also provided.

Pseudopsis monica sp. nov. from the western Andes, Peru, with a key to the South American species of Pseudopsis Newman (Coleoptera, Staphylinidae, Pseudopsinae)

Pseudopsis Newman, 1834 is a genus of Pseudopsinae with about 46 species distributed worldwide, five of which have been reported for South America. In this paper P. monica sp. nov. is described and illustrated based on specimens collected in Lima, Peru. A key to South American species of Pseudopsis and a catalog are also provided.

Diversity and habitat preferences of Carabidae and Staphylinidae (Coleoptera) in two agroecosystems

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A new genus of net-winged beetles from Neotropical Region (Coleoptera: Lycidae)

The new genus Brasilycus is proposed within the tribe Calopterini. Following new species are described in the genus: Brasilycus capixabus n. sp., B. rondonensis n. sp., and B. bolivianus n. sp., all from South America. Illustrations of diagnostic characters and key to Brasilycus are given.

A novel group of allenic hydrocarbons from five Australian (Melolonthine) beetles

Allenic hydrocarbons, previously unknown as a molecular class from insects, are represented by CH3(CH2)(n)-CH=. =CH-(CH2)(7)CH3 (n = 11-15, 17, 19) in several Australian melolonthine scarab beetles and with demonstrated (R)-chirality when n = 11 and 13.

A suite of novel allenes from Australian melolonthine scarab beetles. Structure, synthesis, and stereochemistry

A suite of allenic hydrocarbons, previously unknown as a molecular class from insects, has been characterized from several Australian melolonthine scarab beetles. The allenes are represented by the formula CH3(CH2)nCH=.=CH(CH2)(7)CH3 with n being 11-15, 17 and 19, and thus, all have Delta(9,10)-unsaturation. These structures have been confirmed by syntheses and comparisons of spectral and chromatographic properties with those of the natural components. The enantiomers of (+/-)-Delta(9,10)-tricosadiene and Delta(9,10)-pentacosadiene were separable on a modified beta-cyclodextrin column (gas chromatography), and the natural Delta(9,10)-tricosadiene (n = 11) and Delta(9,10)-pentacosadiene (n = 13) were shown to be of >85% ee. Syntheses of nonracemic allenes of known predominating chirality were acquired using both organotin chemistry and sulfonylhydrazine intermediates, and comparisons then demonstrated that the natural allenes were predominantly (R)-configured.

On occurrence, habitat specificity and natural history of adult tiger beetles (Coleoptera: Carabidae: Cicindelinae) near Manaus, Central Amazonia, and key to the larvae of tiger beetle genera

Over a seven year period from 1991 to 1997, 22 species of tiger beetles, representing nine genera, were recorded near Manaus, Brazil. In the Whitewaterfloodplains along the Rio Solimões-Amazonas (Ilha de Marchantaria), three diurnal species inhabit inundation forests and six species (two diurnal, four nocturnal) live in open areas. Data on their natural history and adaptation to living conditions in floodplains are presented. Fifteen species were located on non-flooded uplands (Reserva Florestal A. Ducke). Five diurnal species inhabit the forest floor, two species are canopy dwellers, and eight species (seven diurnal, one nocturnal) live in open areas on whitesand or laterite. Only one species, Pentacomia lacordairei, was found in both floodplain and upland forests. A key to the larvae of tiger beetle genera located near Manaus is presented.

The Histerid beetles of New Caledonia (Coleoptera: Histeridae).

v.37:no.23(1955)

A revision of the North American and European staphylinid beetles of the subtribe Gyrophaenae (Aleocharinae, Bolitocharini) [by] Charles H. Seevers.

v.32:no.10(1951)

Review of the pselaphid beetles of the West Indies (Coleoptera, Pselaphidae) / Orlando Park, John A. Wagner, Milton W. Sanderson.

v.68(1976)

New mordellid beetles from the western hemisphere.

v.29:no.7(1944)

A new subfamily of beetles parasitic on mammals, Staphylinidae, Amblyopininae, by Charles H. Seevers.

v.28:no.3(1944)