24 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Ccelodiazesis barberi Coquillet. 



Smallest of the Anopheles here, and scarce at all times. En- 

 ters dwellings readily, and is a persistent biter, very nervous, 

 and seldom finishes its meal atone time, even if undisturbed, 

 but gets its meal a little here and a little there, as it were. 

 They breed in tree-holes. Eggs 0.45 by 0.15 mm., very similar 

 to other Anopheles eggs. I have taken them indoors and 

 out in March, April, May, October, and November, I have 

 this mosquito from Mount Nebo, Arkansas, 1,500 feet up on 

 the "bench." 



Anopheles crucians Weidemann.* 



Except that this species is scarcer and more retiring than 

 A. punctipennis, there is little difference in habits. They 

 seldom enter dwellings here. Occurs along with A. pitnc- 

 tipennis, and the dates and temperature given for that species 

 applies to this one also. 



Anopheles quadrimaculatus Say. 



Most abundant of the Anopheles here and as abundant 

 about dwellings in the bottoms as any mosquito. Breeds in 

 bayous and small lakes, even those containing fish if the water 

 is covered with floating weeds; also in pretty much any ac- 

 cumulation of water that stands for a considerable time in rain- 

 barrels and cisterns, boats, and barges. Enters dwellings 

 always. May be said to live in houses as much as human beings. 

 Also in hollow trees and logs. A greedy biter at all times, 

 though worse at night. Will not bite in hot sunshine, so far 

 as I know. This is, so far as I have been able to ascertain, 

 the only malaria carrier here. Neither .-1 . crucians nor . 1 . punc- 

 tipennis are in evidence at the time malaria is most abundant, 

 and they do not enter dwellings to any extent, except in win- 

 ter. C. barberi is here at the right time and enters dwellings 

 extensively, but is very scarce. Of the several hundred cases 

 of malaria I have seen in the past four years, only A. <.]iid- 

 rimacnlatiis could be proved responsible. .1. -calkerii Theob. 

 is possibly only a variety of .1. quadrimaculatus, but I have 

 never taken one indoors. .1. quadrimaculatus is taken on the 

 "bench," Mount Nebo, Arkansas; also on top, 1,500 feet or 

 more. Collected as follows: 



* Specimens not sent to Washington. H. G. DYAK. 



