A study of chironomids (Diptera, Chironomidae) occurring in phytotelmata of Bromeliaceae was carried out in a fragment of the Atlantic Rain Forest in an area of the city of Magé, Pau Grande, one of the metropolitan areas of Rio de Janeiro City, during a period of 13 months between September 2006 and September 2007. Eight samplings were performed at intervals of 1 ½ months and the content of the phytotelmata of the bromeliad species Neoregelia concentrica (Vellozo) L.B. Smith, 1934 and Aechmea nudicaulis (Linnaeus) Grisebach, 1864, were examined. A taxonomical inventory and evaluation of the numerical abundance of Chironomidae larvae were performed in 50 specimens of the bromeliads, being 13 individuals of N. concentrica and 37 of A. nudicaulis. Three taxa of Chironomidae belonging to three distinct subfamilies were recorded: Polypedilum sp., Orthocladiinae genus A and Monopelopia sp. A total of 293 individuals of Chironomidae, were recorded, being 9 Polypedilum sp., 233 Orthocladiinae genus A, and 51 Monopelopia sp., the latter representing the first record of Monopelopia in phytotelmata in Rio de Janeiro State. Considering all samples, a mean density of 3.32 ± 2.62 chironomid larvae per phytotelmata was recorded. There was a positive relationship between the chironomid abundance and both precipitation and the volume of water in the phytotelmata. Apparently there is no preference by the chironomids regarding the colonistion of the bromeliad species.

ABSTRACT. Larvae of Oukuriella Epler, 1986 (Diptera, Chironomidae) inside freshwater sponges are reported for the first time in Brazil.

No abstract

Gonçalves, K. S.; Messias, M. C. Occurrence of Aedes (Stegomyia) aegypti (Linnaeus, 1762) (Insecta, Diptera, Culicidae) in bromeliads in the municipality of Rio de Janeiro (Rio de Janeiro, Brazil). Biota Neotrop., vol. 8, no. 1, Jan./Mar. 2008. Available form: .Abstract : Aedes (Stegomyia) aegypti (Linnaeus, 1762) (Insecta, Diptera, Culicidae) in bromeliads in municipality of Rio de Janeiro. Aedes (Stegomyia) aegypti (Linnaeus, 1762) (Insecta: Diptera, Culicidae) was found in bromeliad species at Fundação Oswaldo Cruz Campus, in the municipality of Rio de Janeiro (Rio de Janeiro, Brazil). Given the possibility of epidemiological impact, we emphasize the importance of studies that evaluate the Bromeliaceae as potential breeding sites in urban areas.

The immature and adult stages of a new species of the genus Oukuriella Epler, 1986 from the Southeast of Brazil are described. The larvae, reared in laboratory to obtain adults, were obtained from submerged wood collected in a reservoir situated in the Jataí Ecological Station (Luiz Antônio, SP). According to Messias et al. (2000) the genus is composed of three species group. The adults of this new species congregate morphological characteristics of the Oukuriella - second group, which is characterised by wings without markings, abdominal tergites with setal tufts and gonostylus broad, 1,5x longer than gonocoxite, but is distinguished by different thoracic and abdominal pigmentation. This is the first description of female for the Oukuriella second group. The immature forms aggregate the same characteristics of O. intermedia, the one species whose pupae and larvae are known. The strongly hardly mental and mandibular teeth sees to indicate the ability to scrape and to shred firm surface as submerged wood, substrate where were collected.