Microhabitats de mosquitos (Diptera, Culicidae) em internódios de taquara na Mata Atlântica, Paraná, Brasil

Abstract

MOSQUITOES MICROHABITATS (DIPTERA, CULICIDAE) IN BAMBOO INTERNODES INATLANTIC FOREST, PARANÁ, BRAZIL. During two consecutive years, from January 1985 to December 1986, a comparative study of mosquitoes preferences for breeding habitat was carried out in the Atlantic Forest of the Serra do Mar, Paraná State, Brazil. To achieve it, 1875 bamboo internodes aligned vertically in live green, bamboo plants Merostachys speciosa Munro and Merostachys sp. were used, in which metabolic water was exuded from the plant itself, and presenting different size/pattern holes at their lateral walls, bored by the local sylvan fauna. Another group of 1200 individual internode traps was used as comparative element, carved out with a transversal cut by a saw, filled with local stream water and held in branches at different heights in the vegetal strata nearby. At both microhabitat types, a total of 17 culicid species was registered. Culex (Microculex) neglectus Lutz, 1904, Cx. (Carrollia) The remaining nine species colonized both habitats indistinctly. Quantitatively, was detected the abundance of 60.1% at live green internodes, against 39.9% for internode traps. Concerning the different patterns of bored live internode holes, 40.3% of the total computed specimens were collected in square or rectangular holes, 31.9% in two hole internodes, one minute circular, the other wider, and the remaining 28.8% of specimens distributed in other pattern type internodes. The mosquitoes breeding at these microhabitats fall in the culicid entomofauna specialized at locating and detecting peculiar and propitious mesogen conditions for breeding purposes.

Mosquito immatures in bamboo internodes in eastern Santa Catarina State, South Brazil (Diptera: Culicidae)

“…Culex soperi was supposedly distributed from Brazilian state of Espírito Santo to the Argentinian province of Misiones, at altitudes lower than 200 m Immature mosquitoes from bamboos in Santa Catarina (VALENCIA, 1973); this is the irst report of this species for Santa Catarina State. The report of Lozovei (1998; indicates a localization out of the purported range of altitude, and the inding of this species in northwest Amazonas State (HUTCHINGS et al, 2005) expands its known distribution considerably.…”

“…Lozovei (1998; found this mosquito only in cups of bamboo internodes. Lozovei (1998; emphasized differences between associated fauna in bamboo internodes with holes and cups made of bamboo internodes and the inluence of the shape of holes, and reported mosquitoes of 17 species from 3,752 internodes in Paraná State. The study of more internodes in eastern Santa Catarina, where ca.…”

“…The immature forms of several mosquito species develop in bamboos and have been studied in southern Brazil (LOZOVEI, 2001;MÜLLER et al, 2008), and those found in artiicially drilled bamboo internodes from the Atlantic Forest in Santa Catarina State have been reported (MÜLLER et al, 2008).…”

“…Genera and subgenera were abbreviated according to Reinert (2009 Lane & Cerqueira, 1942 (24.2%) (CLH, Pantanal, PLP, UCAD and Itapema) were collected. Lozovei (1998; collected Cx. soperi from internodes with several kinds of holes and two other species of the subgenus Carrolia (Culex iridescens (Lutz, 1905) and Culex kompi (Valencia, 1973)) in cut internodes in Quatro Barras (Paraná State, 974 m a.s.l.).…”

“…Immature forms of Tr. soaresi have not yet been described, probably due to their fragility (LOZOVEI, 2001). It seems to be a rare species in internodes with holes.…”