THE MALARIAL MOSQUITOES 



97 



eral tones lower and of not so clear a character. In 

 quality it is something- between the buzzing- of a house 

 tly and the note of Culex. Mr. Pratt states that he can at 

 once distinguish the two genera in this way as he is sit- 

 ting reading in the house, and the writer feels quite sure 



Fig. 16. — Egg IVIass of Anopheles niacuUpennis ; enlarged. (Author's 



illustnilioii.) 



after listening to them in breeding-jars that the statement 

 is correct. 



These observations have been made with an abundance 

 of material, nearly 100 adults having been under obser- 

 vation. 



The Eggs. — The well-known and often-mentioned raft- 

 shaped masses of eggs of Culex are not even remotely 



