32 



able to secure a large number of gravid females of Anopheles qiiadri- 

 maculatus Say through the abundance of this species near the home of 

 one of his assistants, Mr. Pratt, in Virginia, a few miles from Wash- 

 ington. Mr. Pratt was enthusiastic and assiduous in collecting living 

 adults, and these were kept in confinement and their offspring reared 

 in large water jars during April and May, 1900. It may be mentioned 

 here that this species is without doubt identical with the European 

 Anopheles maculipennis Meigen, a fact which Mr. Coquillett has always 

 strongly suspected, although he had no European material with which 

 to compare our American specimens. Dr. W. S. Thayer saw A. macu- 

 lipennis in Grassi's laboratory in Italy, and on his return to this coun- 



FiG. t-i.—Av(iph(ks i/iaKi'miKicvtat'iiK: Adult: nialf at left, fi'U^ale at right— enlarged (original). 



try told the writer that he thought the two forms identical. The 

 question 1ms now been definitely settled by Mr. F. V. Theobald, of 

 England, who is monographing the mosquitoes of the world for the 

 British Museum, and who writes us under date of May 28, 1900, that 

 he has studied a large series of A. quadrimaeulatus received from 

 Canada and that "they exactly tallv with A. inaculipennis.'^'' 



LIFE HISTORY OF ANOPHELES QUADRIMACULATUS. 



The adult. — The accompanying dlustrations (figs. 6, 7, 8) will show 

 very well the general appearance of the adult insect. It is a rather 



