Descrição dos estágios imaturos de Ablabesmyia cordeiroi Neubern, 2013 (Diptera: Chironomidae: Tanypodinae)

Abalesmyia cordeiroi Neubern was originally described based on adult males collected in the Amazon region; therefore, females and immatures of this species are unknown. In the present study, the pupal and larval stages of A. cordeiroi are described and illustrated. In addition, an amendment to the larval diagnosis of Ablabesmyia is provided.Ablabesmyia cordeiroi Neubern foi descrita originalmente com base em machos coletados na região amazônica, portanto, a fêmea e os imaturos desta espécie são desconhecidos. No presente estudo, os estágios de pupa e larva de A. cordeiroi são descritos e ilustrados. Além disso, uma emenda à diagnose da larva de Ablabesmyia é fornecida

Denopelopia amicitia, A new Tanypodinae from Brazil (Diptera, Chironomidae)

A new species of Denopelopia from Brazil is described based on adult male and pupa. The male of the new species can be distinguished from all other species of the genus by the genitalia and fore-tibial spur morphology. The pupa is very similar to those of D. atria, but it can be distinguished by the absence of distinct constrictions in the respiratory atrium of the thoracic horn. Generic diagnosis to male and pupa of Denopelopia is emended and keys to male and pupae of known species are provided. © Renata Manconi et al

Macro-scale (biomes) differences in neotropical stream processes and community structure

The definition of conservation strategies and ecological assessment schemes requires understanding ecosystem patterns over multiple spatial scales. This study aimed to determine if macro-scale structural and functional (processes) patterns associated with stream ecosystems differed among three neotropical biomes (Cerrado, Amazon, Atlantic Forest). We compared the aquatic communities (benthic invertebrates and hyphomycetes) and processes (decomposition rates, primary production and biofilms growth and aquatic hyphomycetes reproduction rates-sporulation) of Cerrado stream sites (neotropical savannah) against those of stream sites in the connecting biomes of the Atlantic Forest and Amazon (rainforests). We expected that, contrary to the biome dependency hypothesis the community structure and processes rates of streams at the biome-scale would not differ significantly, because those ecosystems are strongly influenced by their dense riparian forests, which have a transitional character among the three biomes. Fifty-three stream sites were selected covering a wide range of geographic locations (Table 1), from near the Equator (2° S) in the Amazon, to intermediate latitudes in the Cerrado (12-19° S), and latitudes closer to the tropic of Capricorn in the Atlantic Forest (19º-25° S). We found that: 1) at the abiotic level, the aquatic ecosystems of the three biomes differed, which was mostly explained by large-scale factors such as temperature, precipitation and altitude; 2) functional and structural variables did not behave similarly among biomes: decomposition and sporulation rates showed larger differences among biomes than invertebrate and aquatic hyphomycete assemblages structure; 3) invertebrate assemblages structure differed between the rainforests and Cerrado but not between rainforests (Amazon and Atlantic Forest) whereas aquatic hyphomycetes were similar among all biomes; 4) biofilm growth and algae concentration in biofilms of artificial substrates were highly variable within biomes and not significantly different between biomes. Overall, aquatic ecosystem processes and community structure differed across biomes, being influenced by climatic variables, but the variation is not as pronounced as that described for terrestrial systems. Considering the potential use of these functional and structural indicators in national-wide ecological assessments, our results indicate the need to define different reference values for different biomes, depending on the variable used. The approach followed in this study allowed an integrative analysis and comparison of the stream ecosystems across three tropical biomes, being the first study of this kind. Future studies should try to confirm the patterns evidenced here with more sites from other areas of the three biomes, and especially from the Amazon, which was the least represented biome in our investigation. © 201

Revisão das espécies neotropicais de Larsia Fittkau, 1962 (Diptera: Chironomidae: Tanypodinae) e taxonomia de Tanypodinae Thienemann et Zavřel na Amazônia, Brasil

The first chapter is a review of the Neotropical species of the genus Larsia. The species previously recorded for the neotropical region were redescribed and illustrated, in some cases it was not possible to analyze the material and their situations are discussed in the text. Thirteen species were described as new, and all with material from Brazil. Eight morphotypes were described, three based on males and 5 based on pupae of diferent locations in Central and South America. Keys to male, pupa and larva to those described neotropical species were prepared. The second chapter deals with the Tanypodinae subfamily in the Amazon. A total of 21 species belonging to 11 genera were analyzed, 3 of them were identified as Laurotanypus travassosi, Monopelopia caraguata and M. tenuicalcar, 2 were identified as Pentaneura, but described as morphotypes since only females were associated with immature and 14 species were described as new. Two species have been described as genus A and genus B, since it does not fit the description of any known group of Tanypodinae. Three genera, Clinotanypus, Denopelopia and Parapentaneura were recorded for the first time in the Amazon. Keys to male, pupa and larva of the genera found in the Amazon have been prepared. With these results the number of described species of Tanypodinae registered in Amazon increases from 19 to 44.De modo geral, o presente trabalho trata de taxonomia de Tanypodinae e está dividida em dois capítulos. O primeiro capítulo é uma revisão das espécies neotropicais do gênero Larsia. As espécies previamente registradas para a região foram redescritas e ilustradas, em alguns casos não foi possível analisar o material e suas situações são discutidas no texto. Treze espécies foram descritas, todas com material do Brasil. Oito morfótipos foram descritos, três baseados em imagos e cinco, em pupas, com material proveniente da América Central e do Sul. Chaves para identificar macho, pupa e larva para as espécies neotropicais de Larsia foram elaboradas. O segundo capítulo trata da subfamília Tanypodinae na Amazônia. Foram analisadas 21 espécies distribuídas em 11 gêneros, dessas, 14 representam espécies novas, duas são espécies de Pentaneura, que foram morfotipadas uma vez que apenas fêmeas associadas a imaturos estão disponíveis, duas representam novos registros para o Amazonas (Monopelopia caraguata e M. tenuicalcar), e dois gêneros monotípicos, Gênero A e Gênero B, foram descritos como morfotipos. Três gêneros, Clinotanypus, Parapentaneura e Denopelopia, foram registrados pela primeira vez na Amazônia. Chaves para identificar macho, pupa e larva dos gêneros encontrados na Amazônia foram elaboradas. Com esses resultados o número de espécies descritas de Tanypodinae registradas na Amazônia passou de 19 para 44

Immature stages of Laurotanyus travassosi Oliveira, Messias & Silva-Vasconcelos, 1992 reveal a new synonymy in Tanypodinae (Diptera: Chironomidae)

The monotypic genus Laurotanypus Oliveira, Messias & Silva-Vasconcelos is placed as junior synonym of Procladius Skuse, based mainly on the morphology of immatures. The male of P. travassosi comb. nov. is redescribed and the immature stages are described and illustrated for the first time. In addition, an amendment to the adult male diagnosis of Procladius (Psilotanypus) is provided. Copyright © 2018 Magnolia Press

Two new species of Fittkauimyia Karunakaran (Diptera: Chironomidae) from Brazil

Two new species of the genus Fittkauimyia from Brazil are described and illustrated. Fittkauimyia mayumiae sp. n. from Amazonian forest is described based on adult male, female and pupae and F. carranquensis sp. n. from mountainous region of southeast is described based on adult male and pupae. Copyright © 2013 Magnolia Press

Two new Neotropical species of Djalmabatista fittkau (Diptera: Chironomidae)

Two new species of Djalmabatista from northern Brazil are described and illustrated, Djalmabatista patamona sp. nov. based on adult male and pupa and Djalmabatista wapixana sp. nov. based on adult male only. Copyright © 2017 Magnolia Press

Three new species of Nilothauma Kieffer (Diptera: Chironomidae) from Brazil

Three new species of Nilothauma from Brazil are described and illustrated based on adult males. Nilothauma paucisetis sp. nov. is similar to Nilothauma aripuanense Mendes & Andersen, 2009, but can be distinguished by the number of dorsal setae on tergite IX and by the shape of anal point. Nilothauma anamariae sp. nov. is easily recognized by having the in-ferior volsella L-shaped, with a long simple lateral bristle and an apical lobe directed inwards, bearing 10-12 apically split setae. Nilothauma jaquei sp. nov. is distinguished from all others congeneric species by the superior volsella without mi-crotrichia, with one apical seta and a lateral spine. Copyright © 2017 Magnolia Press

Three new neotropical species of Ablabesmyia Johannsen, 1905 (Diptera: Chironomidae)

Three new species of Ablabesmyia are described from Brazil: A. akemiae sp. n. based on the male, female, pupa and larva; A. adamantis sp. n. based on the male, pupa and larva; and A. monticola sp. n. based on the adult male. Ablabesmyia akemiae sp. n. immatures were collected in a small river associated to aquatic vegetation, A. adamantis sp. n. larva was collected in a first order stream associated with accumulated fallen leaves, and adults of A. monticola sp. n. were collected with light-traps, in a mountainous region at about 1000 m altitude. Copyright © 2019 Magnolia Press

Three new neotropical species of Ablabesmyia Johannsen, 1905 (Diptera: Chironomidae)

Three new species of Ablabesmyia are described from Brazil: A. akemiae sp. n. based on the male, female, pupa and larva; A. adamantis sp. n. based on the male, pupa and larva; and A. monticola sp. n. based on the adult male. Ablabesmyia akemiae sp. n. immatures were collected in a small river associated to aquatic vegetation, A. adamantis sp. n. larva was collected in a first order stream associated with accumulated fallen leaves, and adults of A. monticola sp. n. were collected with light-traps, in a mountainous region at about 1000 m altitude. Copyright © 2019 Magnolia Press