LIST OF FIGURES. 
Fig. page 
1. —Wing of the common house-gnat or mosquito, Culex 
pipiens. x about 16 . . . . . 6 
l a . —Portion of 2nd longitudinal vein, greatly enlarged, to 
show the covering of scales: (a) median vein- 
scales ; ( b ) lateral ...... 6 
l b . —Portion of hind margin of wing, greatly enlarged, to 
show the fringe: (a) border-scales ; ( b ) fringe- 
scales ........ 6 
2. —Larvae of mosquitoes : (a) Anopheles maculipennis , Mg.; 
( h ) Stegomyia fasciata, F.; (c) Culex fatigans, 
Wied. x 4 . . . . . .7 
3. —Anopheles maculipennis, Mg. 9 • X 4. The carrier 
of malaria in Southern Europe .... 10 
4. —Sitting postures adopted by mosquitoes : (a) Anopheles ; 
( b) Culex . . . . . . .11 
5. —Stegomyia fasciata, F. (or Aedes calopus, Mg.) 9 • 
X 4. The only carrier of yellow fever . . 12 
6. —Culex fatigans, Wied. 9 • X 4. The chief carrier 
of Elephantiasis . . . . . .13 
