New report on the bionomics of Coquillettidia venezuelensis in temporary breeding sites (Diptera: Culicidae)

Jeronimo Alencar,Júlia Dos Santos Silva,Fabiana Fagundes Correa,Juliana Barreto Pacheco,Anthony Érico Guimarães

doi:10.1590/s0037-86822011000200023

Jeronimo Alencar, Júlia Dos Santos Silva + Show 3 more

Open Access

https://doi.org/10.1590/s0037-86822011000200023

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Abstract

Findings of immature forms of Coquillettidia venezuelensis in temporary breeding sites, without the presence of aquatic plants or other submerged plant tissue are reported. A systematic scooping technique to collect specimens was used at the breeding site. Immature forms of Coquillettidia venezuelensis, Anopheles rangeli, An. evansae and Culex sp. were collected from areas of the hydroelectric power station of São Salvador, State of Goiás. CONCLUSIONS This is a novel finding relating to the bioecology of Cq. venezuelensis, a species of medical interest that has been found naturally infected with arboviruses, including Oropouche and West Nile virus.

Highlights

Findings of immature forms of Coquillettidia venezuelensis in temporary breeding sites, without the presence of aquatic plants or other submerged plant tissue are reported
In the specific case of Coquillettidia venezuelensis, specimens infected with the virus that causes West Nile fever were recently isolated in studies that are being conducted at Laguna de los Patos, municipality of Cumana, State of Sucre, Venezuela
In June and April 2010, immature forms were systematically collected along the edges of the breeding sites with the aid of entomological scoops (BioQuip®)

Summary

Introduction

Findings of immature forms of Coquillettidia venezuelensis in temporary breeding sites, without the presence of aquatic plants or other submerged plant tissue are reported. The breeding sites for species of Coquillettidia consist of medium to large water accumulations, such as lakes, stagnant pools, swamps and backwaters of rivers. In the specific case of Coquillettidia venezuelensis, specimens infected with the virus that causes West Nile fever were recently isolated in studies that are being conducted at Laguna de los Patos, municipality of Cumana, State of Sucre, Venezuela (personal communication from Glenda Velásquez, MSc, Health Investigation Division, INSALUD, Ministry of Health, Venezuela).

Results

Conclusion