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Mediterranean temporary rivers maintain a high biodiversity, although they support a significant anthropic influence. The community of aquatic Coleoptera and Hemiptera of the Arevalillo River (N Ávila province), a temporary river in the centre of the Iberian Peninsula, with a section previously restored. This restauration consisted in the reforestation of the riverside and the recovery of pools in the riverbed to ensure the maintenance of the water. The aim is to determine the composition of the aquatic Coleoptera and Hemiptera community, its seasonal variation and the differences between two sections with similar characteristics, restored and non-restored, on these groups of aquatic insects. 53 species of Coleoptera and 17 of Hemiptera were identified, most of them with a wide geographical distribution, although 21 new records were made for the province of Ávila. The richness of Coleoptera and Hemiptera doesn't show significant differences between the two studied stations, but they are indeed observed for the benthic macroinvertebrate community as a whole. [ABSTRACT FROM AUTHOR]

The aquatic beetles of the Elmidae family are widely used in the hydrobiological monitoring of lotic ecosystems. In this work, samples belonging to 22 municipalities and 38 bodies of water in the department of Antioquia were reviewed, which were collected using a triangular or surber network. The species Cylloepus francescae, C. whitemanae, Macrelmis clypeata, M. elicioi and Disersus longipennis are recorded for the first time in Colombia. This information contributes to the updating of the number of species and geographical distribution of the family Elmidae in Colombia. [ABSTRACT FROM AUTHOR]

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Elmidae, commonly called riffle beetles, includes small to medium sized aquatic beetles. Elmids are common in running waters with high oxygen content, making them good indicators of water quality. This family shows a worldwide distribution, being more diverse in the Neotropical region, with 46 described genera and about 435 species. This paper summarizes all known information about Elmidae from the Neotropical Region. This contribution presents updated data on the distribution of riffles beetles, the number of species described by genera and country, and a list of species with known larvae. [ABSTRACT FROM AUTHOR]

The present work deals with the taxonomic composition, distribution, and bionomics of noterids from Cuba. Our research is based both on local and regional references on this family found in the literature, and on the identification of specimens collected from several localities of the country. We present a taxonomical list and a key to identify the species occurring in Cuba, along with their distribution regarding phytogeographic districts, and bionomical information. In Cuba, the family Noteridae is composed of five genera (Hydrocanthus Say, Mesonoterus Sharp, Suphis Aubé, Suphisellus Crotch, and Notomicrus Sharp) and 10 species, of which Suphisellus tenuicornis (Chevrolat) is endemic, and Hydrocanthus advena Sharp needs confirmation. According to the present study, noterids are recorded from 11 (28,2%) of an overall of 39 phytogeographic districts established. The Planicie Centro-Occidental district (N°15) shows the highest richness, with 8 species recorded so far. The most widely distributed species is Notomicrus sharpi J. Balfour-Browne, which has been reported for 6 (15,4%) districts. Bionomical data show that noterids have preferences for freshwater habitats, mostly permanent and lentic ones, located in lowlands with a high exposure to sun, turbid waters, and abundant aquatic vegetation. [ABSTRACT FROM AUTHOR]