INSECTS INJURIOUS TO MAN AND IN HOUSEHOLD 643 

 almost uninhabitable and in other districts, greatly reduce the 



a 



FIG. 560. A malaria mosquito: a, eggs; 6, larva; c, pupa; d, male adult; 

 e, female adult. After Howard, U. S. Dept. of Agr. 



vitality of the people. Real estate values in such districts 

 are, of course, far below the normal. Two important species, 



FIG. 561. The yellow-fever mosquito; adult female, side view. Much 

 enlarged. After Howard, U. S. Dept. of Agr. 



