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The stegomyia mosquitoes are tropical and subtropical, but they can live as far north as Philadelphia and even farther.

The stegomyia flies and bites in the early afternoon and again at night, the anopheles flies and bites after sunset.

The Stegomyia mosquito is the agent of yellow fever inoculation.

The Cuban coast was uninterruptedly full of infection, and the danger of an outbreak in each year was never absent, until the work of the United States army in 1901-1902 conclusively proved that this disease, though ineradicable by the most extreme sanitary measures, based on the accepted theory of its origin as a filth-disease, could be eradicated entirely by removing the possibility of inoculation by the Stegomyia mosquito.

The mosquitos include the Culex or ordinary kind, the Anopheles, which carry malarial fever, and the Stegomyia, a striped white and black mosquito which carries yellow-fever.