Maruina is an aquatic genus of Psychodidae with larvae and pupae adapted for life in flowing water. The genus is restricted to the Western Hemisphere, with the majority of species distributed in the Neotropical region. 39 Maruina species are described, with 11 currently known to occur in Brazil, all recorded from the eastern Biomes of Atlantic forest and Caatinga. Here we describe four new Maruina species collected from Brazil: Maruina (Aculcina) roraimensis sp. nov., Maruina (Maruina) kallyntrona sp. nov. and M. (M.) mystax sp. nov. constitute the first report of Maruina from Amazonia and M. (A.) pila sp. nov. from the southern portion of the Atlantic forest expands the distribution of the genus to Rio Grande do Sul, the southernmost state of Brazil. Type specimens of some described species were also studied. Redescriptions are completed for M. (M.) garota and M. (M.) namorada, and additional characters and figures are presented for M. (A.) duckhousei, M. (M.) barrettoi and M. (M.) jezeki. M. pilosella and M. spinosa are considered nomina dubia. Diagnostic characters for the genus and both subgenera are revised and distribution maps for Maruina species recorded in Brazil are provided.

Maruinini is one of the most diverse tribes of moth flies in the Neotropical region. We describe two new species, Arisemus sinuosus sp. nov. and Neopericoma bela gen. nov. et sp. nov., collected in streams and waterfalls of a mountainous formation on the Brazilian Atlantic Forest of eastern Minas Gerais, Brazil. In contrast to the morphology of the type species of Australopericoma Vaillant, a new genus is proposed, Neopericoma gen. nov., to accommodate one new species and other eight species previously placed in Australopericoma: N. abnormalis (Quate & Brown) comb. nov., N. bulbula (Quate & Brown) comb. nov., N. cesticela (Quate & Brown) comb. nov., N. exilis (Quate & Brown) comb. nov., N. onofrei (Araújo & Bravo) comb. nov., N. pallidula (Tonnoir) comb. nov., N. roessleri (Wagner and Joost) comb. nov., N. xavierae (Araújo & Bravo) comb. nov. This is the first record of Arisemus in the State of Minas Gerais.

One of the major challenges facing society, in order to avoid environmental degradation and the contamination of water and soil sources, is the adequate disposal of industrial and urban waste. The area of construction is also considered to be the most harmful to the environment, especially as regards the waste of natural resources and the gradual increase of waste. This study aims to analyze the waste recycling process for the manufacture of non-structural concrete, promoting the practice of waste recycling as a sustainable alternative for the disposal of the debris. In order to respond to the research objectives, the methodological choice was a bibliographical review of the integrative type. The study showed that waste recycling is a sustainable alternative for waste disposal, reducing the chances of deposition in clandestine sites, helping to relieve pressure on landfills and allowing reuse of previously discarded materials.

ABSTRACT. In the diverse genus Psychoda, a great number of species are described based only on one sex, mainly for the difficulties of sexual association in this taxon. Immatures of coprophagous moth flies were captured on a sample of cow dung left exposed during five days at Reserva Ducke (Manaus, Brazil), in the Brazilian Amazon. The presence of Psychodidae larvae was confirmed with a stereomicroscope and the material was kept resting at room temperature until the emergence of adults. Male and females of Psychoda serraorobonensis Bravo, Cordeiro & Chagas, 2006 were obtained and associated by the morphology of the immatures and adults. The male of P. serraorobonensis is herein described and illustrated and the distribution of this species in Brasil is updated. This is the first data about the feeding habits of this species.