Periodicidade de captura de Anopheles darlingi Root (Diptera: Culicidae) em Porto Velho, RO

Abstract

-Anopheles darlingi Root is the principal malaria vector in Amazonia region. The objectives of this work were to study the periodicity of Anopheles darlingi Root, the host preference for peri or extra-domestic environments and the parous rate in four fi eld sites in Porto Velho (RO) by human-landing. All of the Anopheles specimens collected were identifi ed, but only A. darlingi was dissected for the parous study. The results showed that human-landing colleted a total of 985 anophelines, with A. darlingi (972) being the most abundant species. Female mosquitoes were more abundant at extra-domestic environments in two of the locations studied (São João e Candeias do Jamari) (P < 0.05). The parous rate was 96% and no periodicity was observed for captures of females of A. darlingi in the fi eld sites.

Development of the BG-Malaria trap as an alternative to human-landing catches for the capture of Anopheles darlingi

“…However, previous studies in the same area recorded high densities of An. darlingi (Lourenço-de-Oliveira et al 1989, Gama et al 2009), suggesting that a large proportion of the unidentified specimens belonged to this species. In this case, the analysis of the data in all experiments was conducted for specimens identified as An.…”

“…Anophelines tend to be relatively abundant within the study area, where the predominant species is An. darlingi (Lourenço-de-Oli-veira et al 1989, Gama et al 2009). …”

Fauna of Culicidae in rural areas of Porto Velho and the first record of Mansonia (Mansonia) flaveola (Coquillet, 1906), for the state of Rondônia, Brazil

“…In a study realized in four rural areas in Porto Velho (Mato Grosso, Nova Esperança, São João and Candeias do Jamari) on human bait, Gama 12 collected a total of 985 anophelines. Among these 972 were A. darlingi.…”

Genetic differences based on AFLP markers in the mosquito species Anopheles darlingi collected in versus near houses in the region of Porto Velho, RO, Brazil

“…In the same year, Porto Velho had the highest number of cases in Brazil, 22,271 or 7.2% of the total of cases in the country (SIVEP-malária;FNS, 2010). In all these places, the presence of Anopheles, with the prevalence of A. darlingi, was reported (Gama et al, 2009).…”

“…Finally, on the right side of the square in Figure 1, we can see Candeias do Jamari. Captures were made by human landing, performed according to Gama et al (2009) by trained technicians, at dusk (from 18:00 to 21:00 h) in the peri-domicile environment (on the balcony of houses) and extra-domicile environment (about 15 m from the house), in each of the sites previously mentioned, totaling eight mosquito samples, corresponding to four collection points, each one with two environments. The specimens were identified in the entomology laboratory of LACEN-RO according to Consoli andOliveira (1994) andForattini, (2002).…”