150
MALARIA
[CHAP.
brackish or salt water, and each species has its own particular kind of habitat.
For those who still think it desirable to sub-divide the genus Anopheles, the following synopsis of subgenera may be serviceable:—
Front edge of wing either not spotted or having not more than two distinct spots. |
Abdomen without scales; palpi slender; wings not or little spotted; wing scales narrow | Anopheles. | |||||
Abdomen with some localized scales, if only a tnft on the 7th abdominal sternum; palpi shaggy; wings always dappled; wing-scales broad |
Myzorhynchus. | ||||||
Front edge of wing broken into numerous alternate light and dark spots or streaks. |
Mesothorax invested with hairs | Myzomyia. | |||||
Mesothorax invested with narrow upstanding scales | Pyretophorus. | ||||||
Mesothorax invested with broad, appressed, white or yellow scales |
No outstanding tufts of scales on abdomen | Nyssorhynchus. | |||||
Tufts of scales projecting from abdomen laterally or ventrally | "Cellia." |