Two new biting midges from Pará, Brazil (Diptera: Ceratopogonidae)

Two new species of Culicoides Latreille of the subgenus Haematomyidium Goeldi are described and illustrated based on female specimens from Pará, Brazil. The new species are compared with their similar congeners

Lista dos exemplares tipos de Ceratopogonidae (Diptera: Nematocera) depositados na Coleção Entomológica do Instituto Oswaldo Cruz, Rio de Janeiro, Brasil List of the type species of Ceratopogonidae (Diptera, Nematocera) deposited in the Entomological Collection of Instituto Oswaldo Cruz, Rio de Janeiro, Brazil

<abstract language="eng">A list of all type specimens of the Family Ceratopogonidae, present in the Entomological Collection of Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil is presented. This list includes the genera Bahiahelea, Culicoides, Dasyhelea, Downeshelea, Forcipomyia, Leptoconops, Mallochohelea, Monohelea, Neobezzia, Palpomyia and Sphaerohelea

Abundance of Culicoides (Diptera, Ceratopogonidae) species in salt marshes of the Patos Lagoon estuary, Rio Grande do Sul, Brazil: influence of climatic variables

Made available in DSpace on 2015-04-06T17:18:21Z (GMT). No. of bitstreams: 2 daiane_carrascoetal_IOC-2014.pdf: 753127 bytes, checksum: 97b54d409fc51f89325f14dfaaf4f7ad (MD5) license.txt: 1914 bytes, checksum: 7d48279ffeed55da8dfe2f8e81f3b81f (MD5) Previous issue date: 2014Universidade Federal do Rio Grande. Instituto de Oceanografia. Programa de Graduação em Oceanografia Biológica.Fundação Oswaldo Cruz. Instituto Oswaldo Cruz.Universidade Federal do Rio Grande. Instituto de Oceanografia.Marismas são áreas intermareais com vegetação dominada por gramíneas, juncos e ciperáceas, onde vários dípteros ocorrem devido à abundância de substratos para o seu desenvolvimento. Culicoides são comuns nesse tipo de habitat e são conhecidos pelo incômodo que causam ao homem e aos animais domésticos. O objetivo do trabalho foi investigar as relações existentes entre a variabilidade temporal das espécies de Culicoides nas marismas e as variáveis climáticas. As coletas foram efetuadas na Ilha da Torotama (31°53’33”S; 052°14’33”W), na Ilha da Pólvora (32°02’01’’S; 052°10’45”W) e no Molhe Oeste da Barra de Rio Grande (32°10’65”S; 052°08’52”W), de setembro de 2008 a setembro de 2010. Foram utilizadas duas armadilhas malaises instaladas em cada área. As interações entre a flutuação populacional das espécies de Culicoides e as variáveis ambientais foram investigadas através da correlação de Spearman e pela análise de correlação canônica. As três espécies coletadas no estudo foram Culicoides insignis Lutz, Culicoides venezuelensis Ortis e Misa e Culicoides caridei Brethes. C. insignis foi coletada durante todo o período amostral; C. venezuelensis esteve associada a períodos de El Niño e C. caridei de La Niña. As variáveis condicionantes na variabilidade temporal das espécies foram umidade e temperatura ambiente, precipitação e velocidade do vento.Salt marshes are intertidal areas with vegetation dominated by grasses, rushes and sedges, where many Diptera occur due to the abundance of substrates available for their development. Culicoides are common in such habitats and are known for being a nuisance to man and domestic animals. This study aimed to investigate the relationships between temporal variability in Culicoides species in salt marshes and climate variables. Samples were collected on Torotama Island (31°53’33”S; 052°14’33”W), Pólvora Island (32°02’01’’S; 052°10’45”W) and the West Breakwater of the Rio Grande (32°10’65”S; 052°08’52”W) from September 2008 to September 2010. Two malaise traps were set in each area. Interactions between the temporal fluctuations in Culicoides species populations and environmental variables were assessed using Spearman correlation and canonical correlation analysis. The three species sampled in this study were Culicoides insignis Lutz, Culicoides venezuelensis Ortis and Misa, and Culicoides caridei Brethes. C. insignis was found throughout the sampling period; C. venezuelensis was associated with El Niño periods, and C. caridei was associated with La Niña periods. The variables humidity, temperature, precipitation and wind speed influenced the species’ temporal variations

Five new species of Culicoides Latreille described from Colombia, yielding a new species list and country records (Diptera: Ceratopogonidae)

The following five new species of Culicoides from Colombia are described, illustrated and placed to subgenus or species group: Culicoides antioquiensis, Culicoides gabrieli, Culicoides inermis, Culicoides micayensis and Culicoides nigrifemur. C. gabrieli is also known from Peru. When possible, their position in previously published keys is indicated and their features discussed in light of the most recent revisions. A list of 180 Culicoides species known (114) or suspected of being in Colombia (66) is given in a Table. Of these, 12 including the new species are recorded from Colombia for the first time