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Arctiinae (Lepidoptera, Arctiidae) coletados em unidades de conservação estaduais do Rio Grande do Sul, Brasil. O presente estudo foi realizado com o objetivo de analisar a composição das comunidades de Arctiinae no Parque Estadual do Espigão Alto (Barracão), Parque Estadual de Rondinha (Sarandí), Parque Estadual do Turvo (Derrubadas) e na Reserva Biológica de Ibirapuitã (Alegrete). Dez armadilhas luminosas foram utilizadas para coletar os lepidópteros, de novembro de 2000 a fevereiro de 2001, amostrando-se uma noite em cada local. Os lepidópteros foram identificados aos níveis de subfamília, tribo e, quando possível gênero e espécie. Obteve-se um total de 5.969 arctiíneos pertencentes a 137 morfo espécies, distribuidos em seis tribos.
Arctiinae (Lepidoptera, Arctiidae) collected in protected unities in Rio Grande do Sul State, Brazil. The objective of this work was to analyze the composition of the Arctiinae communities at Parque Estadual do Espigão Alto (Barracão), Parque Estadual de Rondinha (Sarandí), Parque Estadual do Turvo (Derrubadas) and at Reserva Biológica de Ibirapuitã (Alegrete). Ten light traps were used to collect the lepidopterous from November/2000 to February/2001, sampling one nigth per area. The lepidopterous were identified at subfamily and tribe levels and, when it was possible, at genera and species levels. A total 5,969 Arctiinae belonging to 137 morpho species, distributed in 6 tribes were collected

Abstract:Here is presented a guide to identify the species of Scarabaeinae occurring in Santa Maria, Rio Grande do Sul, compiled from the literature and captured between May 2009 and April 2010 in forest fragments. A dichotomous key, characterization, illustrations (species collected) and ecological information for 35 species are provided.

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ABSTRACT. Copro-necrophagous beetles (Coleoptera: Scarabaeidae: Scarabaeinae) from Atlantic Forest fragments of Silveira Martins, Rio Grande do Sul, Brazil. The fauna of Scarabaeinae (Coleoptera: Scarabaeidae) was sampled using pitfall traps baited with human excrement and rotten fish in forest fragments in Silveira Martins, Rio Grande do Sul, Brazil, from November 2010 to January 2011. A total of 1,611 individuals were sampled, belonging to six tribes, 11 genera and 28 species. The most abundant species were Canthon latipes Blanchard, 1845 (49.9%), C. chalybaeus Blanchard, 1845 (13.9%), Deltochilum sculpturatum Felsche, 1907 (4.9%), and Eurysternus caribaeus (Herbst, 1789) (4.3%), which accounted for 73% of the total individuals captured. Traps baited with human excrement captured a higher number of species than those baited with rotten fish. There was no statistically significant difference between the kinds of baits used in relation to the abundance of Scarabaeinae. Most of Scarabaeinae species was represented by generalist feeding habits and tunneler behavior. The community sampled follows the general patterns of trophic and behavioral structure of Scarabaeinae found throughout the Neotropical region.

Regarding the sampled species, 79.50 % (128) were recorded at both studied sites.

ABSTRACT. Structure and organization of Scarabaeinae assemblages (Coleoptera, Scarabaeidae) in different vegetation types in SouthernBrazil. Patterns of species richness, abundance, diversity, equitability and dominance, and the organization in feeding and behavioral guilds of Scarabaeinae fauna were analyzed in three different vegetation types (forest, native field and crop) in northwestern of Rio Grande do Sul, Brazil, among September and November 2012, with the use of pitfall traps baited with different resources (feces, rotting meat and fermented banana). A total of 9,325 specimens were captured, distributed in nine genera and 32 species. The most abundant species were Onthophagus aff. tristis Harold, 1873, Canthidium aff. trinodosum (Boheman, 1858), Canthon aff. fallax Harold, 1868, Canthon lividus Blanchard, 1845 and Deltochilum morbillosum Burmeister, 1848 which represented 65.54% of the total individuals sampled. The forest showed the highest values of number of individuals and species. The lower richness was observed in the field while the crop showed the lowest abundance of individuals. Scarabaeinae showed qualitative and quantitative differences in their assemblies across vegetation types sampled. The forest showed the highest observed species richness and a fraction of these are unique to this environment, and rarely occurs in other types of ecosystems. In general, the forest has a greater proportion of trophic generalist or copro-necrophagous species in its composition. Another part of this fauna, being largely represented by coprophagous species, is adapted to open environments indicating a change in food guild caused by replacing the forest with pasture. Thus, in a broader context the landscape can play an important role in diversity of dung beetles. KEYWORDS. Dung beetles, forest, native field, crop, attractiveness.RESUMO. Padrões de riqueza de espécies, abundância, diversidade, equitabilidade e dominância, além da organização em guildas tróficas e comportamentais da fauna de Scarabaeinae foram analisados em três diferentes fitofisionomias (floresta, campo natural e lavoura) na região noroeste do estado do Rio Grande do Sul, Brasil, entre setembro e novembro de 2012, através da utilização de armadilhas de queda iscadas com distintos recursos (fezes, carne em decomposição e banana fermentada). Foram capturados 9.325 espécimes, distribuídos em nove gêneros e 32 espécies. As espécies mais abundantes foram Onthophagus aff. tristis Harold, 1873, Canthidium aff. trinodosum (Boheman, 1858), Canthon aff. fallax Harold, 1868, Canthon lividus Blanchard, 1845 e Deltochilum morbillosum Burmeister, 1848 que representaram 65,54% do total de indivíduos amostrados. A floresta apresentou os valores mais elevados de número de indivíduos e de espécies. A menor riqueza foi observada no campo, enquanto a lavoura apresentou a menor abundância de indivíduos. Scarabaeinae apresentou diferenças quali-e quantitativas em suas assembleias pelas fitofisionomias amostradas. A floresta abrigou a maior riqueza observada de espé...

Eurysternus caribaeus (Herbst 1789), Canthidium sp. and Canthon lividus Blanchard, 1845, were the most abundant species. MOEL showed the greatest richness, MOCE the greatest abundance, while UFSM showed the lowest values of richness and abundance. The greatest similarity (qualitative and quantitative) was found between MOEL and MOCE, while the lowest occurred between MOCE and UFSM. Only 51% of the species were common to all three fragments. The richness and abundance of Scarabaeinae were positively correlated with the air temperature. The richness of the fragment decreased according to the smaller size and the greater degree of disturbance of vegetation structure.