440 The Ohio Naturalist. [Vol. VI, No. 3, 



Culex restuans Theobald. Vinton, June 5, 1900. (Hine). 



Culex sylvestris Theobald. Wauseon, September 5, 1903. (Hine). San- 

 dusky (Cedar Point), July 27, 1905. (W. E. Evans). Hooker, Sep- 

 temli'er 5, 1905. (Cotton). Dayton, September 27, 1905. (Burgess). 



Culex triseriatus Say. Medina, July 7, 1898. Vinton, June 5-12, 1900. 

 (Hine). Cincinnati, August 2-8, 1905. (Dury). 



Culex trivittatus Coq. Ft. Ancient, June 10-12, 1902. (Hine). 



Taeniorhynchus perturbans Walk. Sandusky (Cedar Point), Julv 23, 

 1003. (Hine). 



Aedes smithii Coq. Cleveland. (Reported by Howard.) 



It will be observed that seventeen species have thus far been 

 captured in Ohio. The most interesting among them, from an 

 economic standpoint, are Anopheles maculipennis, which was 

 taken at Sandusky, July Sth, 1903, and A. punctipennis, which 

 has been taken at Columbus in March, July, September and 

 October of various years, as they are the probable agents for the 

 distribution of malaria. 



Aside from the biting propensities of many species of mos- 

 quitoes, which cause annoyance and render some localities well 

 nigh uninhabitable at certain seasons of the year, the knowledge 

 that these two species are present in the state is very important. 

 Although malaria is not considered a fatal disease, it caused 

 sixty-eight deaths in the state during the year 1903, and doubt- 

 less this number represents only a small percentage of the 

 persons who suffered from its enervating effects. 



From the fact that one of the species listed, namely, Culex 

 confinis, was first collected and described in South America, but 

 was taken this summer at Sandusky, and further that the yellow 

 fever mosquito (Stegomyia fasciata) was collected at Louisville, 

 Ky., in October, 1903, by Dr. T. B. Berry, and has been found 

 during the present year at Evansville, Ind., and Lexington, Ky., 

 it is evident that some of the species of this family have a wide 

 range of distribution 



It would appear possible for the latter species to be carried 

 by boats from southern ports to almost any Ohio river town. 

 Our knowledge of the distribution of this and other species is at 

 present imperfect, and many points concerning the habits, life 

 history and hibernation must be investigated if the problem is 

 to be dealt with in an intelligent manner. 



Neglect to obtain positive knowledge may at some future 

 time result in loss of life, as well as seriously injure the business 

 interest of localities involved ; hence it would appear that no time 

 should be lost in carefully and thoroughly investigating the 

 problem. 



Columbus, Ohio. 



