PSYCHE 



[February 



probably of considerable length, especially in those forms that do not reproduce. 

 That they may bite more than once is certain, and direct experiment has proven 

 tliat a full meal of blood may be so completely digested in one week, that scarcely 

 a trace remains. The examination of a large number of specimens seems to indi- 

 cate that blood food stimulates ovarian development, for in the great majority of 

 cases where I found fully developed ova I found also blood remnants. In those 

 cases in which such remnants were not found it cannot be safely concluded that 

 such food had not been taken more than a week previously. But I did find numer- 

 ous instances of ova starting development where the alimentary canal contained 

 only a colorless liquid; probably plant juices. 



Larvae of C. sollicitans were not found after November 4, but adults continued 

 until well along in that month. In shelters along the Newark meadows where C. 

 iii^ritiilus, another salt water species, was found hibernating, not a C. sollicitans 

 occurred in December. 



Altogether the life cycle of this species offers points of interest that will 

 require at least another full year to work out. 



Plate i. 



Culex solUcitans Wlk. 



Full-grown larva. 



Pupa. 



Adult male, from above. 



Adult female, from side. 



Head of larva from beneath. 



