Surveys of mosquito larvae were carried out in six areas of Kosrae Island, Kosrae State, the Federated States of Micronesia in December 2009 and June 2012. A total of 962 larvae of six species were collected from 106 natural and artificial habitats. They were identified as
Aedes aegypti,
Ae. albopictus,
Ae. marshallensis,
Culex quinquefasciatus,
Cx. annulirostris, and
Cx. kusaiensis. This is the first report from Kosrae Island for three of these species—
Ae. marshallensis,
Cx. quinquefasciatus, and
Cx. annulirostris. The most abundant species was
Ae. albopictus, followed by
Ae. marshallensis, and these two species were found in all areas. Relatively large numbers of
Cx. quinquefasciatus and
Cx. kusaiensis were found in five areas. Fewer
Cx. annulirostris were found, and only in three areas.
Aedes aegypti larvae were collected from a single habitat at Tafunsak in 2009. To prevent the outbreak of dengue fever, environmental management should focus on the destruction, alteration, disposal and recycling of containers that produce larger numbers of adult
Aedes mosquitoes.
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