A monthly survey of
Aedes aegypti
and
Aedes albopictus
immatures in discarded tires at a site in metropolitan Rio de Janeiro showed that
Ae. albopictus was much more abundant in the rainy season, but
Ae. aegypti abundance showed a less clear seasonal pattern. Pupal masses for
Ae. albopictus showed a seasonal trend. In contrast,
Ae. aegypti pupae did not show any clear trend in weight. Large
Ae. albopictus pupae were found in the warmer months, when water volume was higher, pH lower, and larval abundance lower. Further studies should be carried out to assess how seasonal variations in body size may impact vector competence of these species in Brazil.
