MOSQUITOES 



61 



from the boat-shaped egg-masses of Culex pipieiw. The 

 individual eggs differ greatly in shape from those of 



Fig. 24. — Anopheles quadrimaculatus . (X 7.) 



Culex. The eggs of Anopheles are strongly convex below 

 and slightly concave above. As seen from the side they 

 are canoe-shaped. 



