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Abstract
The effect of multiple immersions on Haemagogus janthinomys , Haemagogus leucocelaenus , Aedes albopictus and Ochlerotatus terrens eggs was studied. Eggs were collected in April, June, October and December of 2011 in Minas Gerais, Brazil. Most of the Aedes and Ochlerotatus eggs hatched upon the first immersion, while Haemagogus eggs showed a varied instalment hatching response. The number of immersions required for hatching increased for eggs collected closer to the dry winter season.
Highlights
Mosquitoes of the genus Haemagogus have been studied in North and South America (Marcondes & Alencar 2010) due to their medical relevance as vectors of the yellow fever virus, Mayaro and other arboviruses
The aim of this study was to explore the response to multiple immersions in eggs of Haemagogus janthinomys Dyar, Haemagogus leucocelaenus (Dyar & Shannon), Ae. albopictus and Oc. terrens that were collected in different seasons
We found a cumulative effect of immersion for Hg. janthinomys, up to the 26th immersion in April and the second immersion in December, after which the effect of subsequent immersions was negligible
Summary
Mosquitoes of the genus Haemagogus have been studied in North and South America (Marcondes & Alencar 2010) due to their medical relevance as vectors of the yellow fever virus, Mayaro and other arboviruses. The aim of this study was to explore the response to multiple immersions in eggs of Haemagogus janthinomys Dyar, Haemagogus leucocelaenus (Dyar & Shannon), Ae. albopictus and Oc. terrens that were collected in different seasons. Hg. janthinomys showed the highest percentage of hatching upon the 13th immersion in April and upon the second immersion in December.
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