Cesar João Benetti

Gêneros de Hydradephaga (Coleoptera: Dytiscidae, Gyrinidae, Haliplidae, Noteridae) citados para o Brasil, com chaves para identificação

The Brazilian fauna of adephagus beetles (Hydradephaga) comprised by the families Dytiscidae, Gyrinidae, Haliplidae and Noteridae is represented by 47 genera and 496 species. We present a list of genera and respective number of species occurring in the Brazilian fauna. Idenfication keys are also provided for the genera of the families Dytiscidae, Gyrinidae and Noteridae. (Haliplidae is represented only by Haliplus).

Fauna de coleópteros aquáticos (insect: coleoptera) na Amazônia central, Brasil

In this work, 888 specimens of aquatic Coleoptera were collected in Manaus, Manacapuru and Presidente Figueiredo counties (AM), distributed in 12 families, 50 genera and 88 species or morphospecies. New occurrences in Brasil include the following species of Dytiscidae: Hydrodessus robinae, H. surinamensis, Hypodessus frustrator, Neobidessus confusus, N. spangleri and N. woodruffi. The genera Agaporomorphus (Dytiscidae) and Pronoterus (Noteridae) were reported for the first time in the State of Amazonas, as well as the species P. punctipennis and Suphisellus nigrinus (Noteridae); Agaporomorphus grandisinuatus, Bidessonotus tibialis, Derovatellus lentus,Desmopachria nitida, Hydaticus xanthomelas, Laccophilus tarsalis, Liodessus affinis and Megadytes laevigatus (Dytiscidae). The family Dytiscidae presented the highest richness, with 34 species, followed by Hydrophilidae, with 20 and Noteridae, with 12 especies. The genera with greatest number of species were Gyretes (Gyrinidae) and Suphisellus (Noteridae) with 6 species, Copelatus (Dytiscidae) and Tropisternus (Hydrophilidae) with 5 species.

The microhabitat preferences of Trichoptera in rivers in north-western Spain

We analysed the microhabitat preferences of caddisfly species in four rivers in north-western Spain. In each river, we sampled five sites with different types of substrate. These sites were characterised in situ according to the predominant material type (macrophytes, moss, pebbles and sand). A one-way ANOVA was used to test for significant differences in species abundance among substrates, and a nested ANOVA was used to test for significant differences in physical and chemical variables among rivers and sampling sites. A similarity percentage-species contribution analysis was performed to estimate the contribution of each species to the characterisation of each substrate. We observed significant differences in the abundance of seven species (Drusus bolivari, Glossosoma privatum, Larcasia partita, Micrasema longulum, M. servatum, M. gr. moestum and Sericostoma sp.) among substrates, confirming that these species have substrate preferences. According to similarity percentage-species contribution, the species that contributed most to differences were as follows: for sand, Sericostoma sp.; for macrophytes, Rhyacophila adjuncta, Hydropsyche ambigua, Sericostoma sp.; for moss, Micrasema gr. moestum, M. servatum, M. longulum, Hydropsyche tibialis and R. adjuncta; and for pebbles, Sericostoma sp., Larcasia partita and H. tibialis. These preferences can be explained by the fact that different species use different materials from the substrate to build their cases and also as a source of stability, protection and food.

Macroinvertebrates as Indicators of Water Quality in Running Waters: 10 Years of Research in Rivers with Different Degrees of Anthropogenic Impacts

The management of running waters is of great importance for the life of our society and one of the challenges to be met by future generations. The sustainable use of water resources for their exploitation in different aspects is essential. Also, the maintenance of good water quality, both sanitary and environmental, is essential, since it depends largely on the conservation of biodiversity (Fernandez-Diaz, 2003).

Three new species of Claudiella Reichardt & Vanin, 1976 (Coleoptera, Torridincolidae) from Brazil

The monotypic Neotropical genus Claudiella Reichardt & Vanin, 1976 is currently known only from Brazil (C. ingens Reichardt & Vanin, 1976). We describe here three new species from Brazil, C. jefersoni sp. n., C. jeaneae sp. n. and C. anamariae sp. n., from Roraima, Minas Gerais and Bahia states, respectively, bringing to four the number of species included in Claudiella. These species can be distinguished by different characteristics observed in the legs, mouth parts, metathoracic wings and male genitalia.

Notes on "A checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil" by Colpani et al. (2014)

In a recently published paper on the Gyrindae of Brazil (Colpani et al. 2014) a checklist of all known species from this country was given. This addition to the knowledge of Gyrinidae, based on literature published prior to 2012, comprises 206 species and subspecies and gives a complete account of the nomenclature for each taxon including synonyms and historical combinations. Additionally, the geographical distribution–both inside and outside of Brazil–of each species is provided. Although the authors have studied the literature (about 120 publications, most of them in French or German) very carefully, it was quite inevitable that some mistakes were made.

Biodiversity and Conservation of Temporary Ponds — Assessment of the Conservation Status of “Veiga de Ponteliñares”, NW Spain (Natura 2000 Network), Using Freshwater Invertebrates

Freshwater biodiversity provides a broad variety of valuable goods and services for human societies, some of them irreplaceable [1]. Globally, the biodiversity of freshwater ecosystems is rapidly deteriorating as a result of human activities [2]. It is possible that in future decades human pressure on water resources will further endanger aquatic biodiversity present in these systems [3]. The need to protect these ecosystems and many others led to the creation of the Natura 2000 network in Europe. This network is the most important conservation and management tool in the European Union. It was established under the Habitats Directive (92/43/EEC) and the Birds Directive (79/409/EEC), and its main objective is to ensure the longterm conservation of the most important European species and habitats in a sustainable way with human activities. It is formed by Special Areas of Conservation (SAC), which are protected areas established with the purpose of conservation of habitat types and/or species included in the Habitats and Birds directives. In Spain, there are 1,448 SAC covering a total of 23.17% of the territory. Only 11.65% of the Autonomous Community of Galicia (North-western Spain) is protected (59 SAC), in spite of having a great variety of freshwater ecosystems.

A Checklist of the Gyrinidae (Coleoptera: Adephaga) of Brazil

A checklist of all known species of the water beetle family Gyrinidae (whirligig beetles) recorded from Brazil is assembled. This checklist is based on literature published prior to 2012. A total of 206 species and subspecies are cited for Brazil, distributed among three genera (Enhydrus Laporte, 1834, Gyrinus Geoffroy, 1762 and Gyretes Brullé, 1835). For each species we also include a complete account of its nomenclature including synonyms and historical combinations. The geographical distribution of each species both inside and outside of Brazil is provided.