274 SANITARY ENTOMOLOGY 



A dark brown species with the wings mostly brown having a 

 large, yellowish-white spot on the front edge of wing towards 

 the tip, and a smaller light spot close to the tip. Fringe at 

 the tip of wing dark, Anopheles piMctipemds. 



A species very slightly smaller. Wings clear except along front 

 edge where there are three large, yellowish-white spots towards 

 the tip. The third spot is at the tip and the fringe at the tip of 

 the wing is yellowish-white, Anopheles pseudopunctipennis. 



A brown species with the wings without pale, conspicuous mark- 

 ings. Wings with four dark-gray to black spots on outer half 

 (fig. 58), Anopheles quadrimactdatus. 



Fig. 58. — A malarial mosquito, Anopheles quadrimaculatus Male at left and female 

 at right. Greatly enlarged. (Howard.) From U. S. Dept. Agr., Office of Secy., 

 Circ. 61, fig. 8. 



The yellow fever mosquito is more definitely marked than any other 

 species of mosquito known. The general color is a dark-brown. On top 

 of the thorax or back there are two silvery-white, curved lines which 

 resemble an inverted lyre. 



REFERENCES 



Howard, L. O., Dyar, H. G., and Knab, F., 1912-1917.— The mosquitoes 

 of North and Central America and the West Indies, 4 vols. This very 

 fine monograph is the largest and most complete on this subject. 



Dyar, H. G., and Knab, F., 1917. — The genus Culex in the United States. 

 Insecutor Inscitiae Menstruus, Vol. 5, Nos, 10-12. 



