The malarial fevers, haemoglobinuric fever and the blood protozoa of man . THE ETIOLOGY OF THE MALARIAL FEVERS. 71 or spindle-shaped; abdominal scales as lateral tufts and dorsalpatches of fiat scales. Genus, Nyssorhynchus. Bl. f. Abdomen nearly completely scaled with long irregular scales and with lateral scale tufts. Genus, CelUa. Theo. g. No lateral tufts and smaller wing scales. Genus, Neocellia. Theo. The following brief descriptions of the principal genera of interest tostudents of malaria are largely those given by Theobald, to whom I am indebtedfor much that appears in this chapter upo
The malarial fevers, haemoglobinuric fever and the blood protozoa of man . THE ETIOLOGY OF THE MALARIAL FEVERS. 71 or spindle-shaped; abdominal scales as lateral tufts and dorsalpatches of fiat scales. Genus, Nyssorhynchus. Bl. f. Abdomen nearly completely scaled with long irregular scales and with lateral scale tufts. Genus, CelUa. Theo. g. No lateral tufts and smaller wing scales. Genus, Neocellia. Theo. The following brief descriptions of the principal genera of interest tostudents of malaria are largely those given by Theobald, to whom I am indebtedfor much that appears in this chapter upon mosquitoes. Genus, Anopheles. Meigen, 1818. Occurs mostly in temperate regions,although certain species occur in tropical countries, especially in the hill genus is found in Europe, the United States, North Africa, hill districtsof India, in Australia, West Indies, West Africa, all of North America. Fifteenspecies are included in this genus, the type species being A. maculipennis, acommon species in Europe and North America. Some of the species have been. Fig. 19.—Pupa of Anophelins. (After Nuttall and Shipley.) proven to transmit malaria, as A. maculipennis and A. algeriensis. Thelarvae of A. maculipennis occur in water barrels and pools, others in small naturalcollections. Adult A. maculipennis hibernate. Theobald believes that allspecies may act as the hosts of the malarial plasmodia. Genus, Myzomyia. Blanchard, 1902. This genus occurs in Europe,Africa, Asia, the Philippine Islands, but does not occur in North or South America,the West Indies, or Australia. The type species is M. funesta Giles, one of themost common of malarial carriers in tropical regions in Asia and Africa. Piveof this genus have been proven to transmit malaria, namely, M. listonii Liston;yi. funesta Giles; M. turkhudii Liston; M. culicifacies Giles, and M. nili culicifacies is of especial interest, as its resting position is like that of non-malarial mosquitoes. M. rossii Gile
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