Elementary entomology . elementaryentomo00sand Year: [c1912] FIG. 352. Wing of a mosquito (Mansonia titillans Walk.) enlarged, showing scales on veins, and a portion of same further enlarged • (After Felt) thorax. The pupa stage lasts from one to three days, the whole life from egg to adult requiring from eight days to two or three weeks. Not only are mosquitoes exceedingly annoying, rendering some sections almost uninhabitable, but it has been shown that malarial fever is transmitted only by mosquitoes of the genus Anopheles, and that the dreaded yellow fever is similarly carried only by spe
Elementary entomology . elementaryentomo00sand Year: [c1912] FIG. 352. Wing of a mosquito (Mansonia titillans Walk.) enlarged, showing scales on veins, and a portion of same further enlarged • (After Felt) thorax. The pupa stage lasts from one to three days, the whole life from egg to adult requiring from eight days to two or three weeks. Not only are mosquitoes exceedingly annoying, rendering some sections almost uninhabitable, but it has been shown that malarial fever is transmitted only by mosquitoes of the genus Anopheles, and that the dreaded yellow fever is similarly carried only by species of the genus Stegomyia, which has resulted in an entire change in the methods of controlling these diseases. Very much can be
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Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
