60 



REMARKS ON THE HEMIPTEROUS FAUNA OF 



OHIO WITH A PRELIMINARY RECORD 



OF SPECIES. 



HERBERT .OSBORN, OHIO STATE UNIVESITY. 



If there is an3^ need of an apology for the study of 

 a local fauna it would seem to be sufficient to call to 

 mind the numerous problems in geographical distri- 

 bution, life zones and dispersal which are presented by 

 every group of animals and for the solution of which 

 complete records of local faunae become indispensable. 

 At first sight it ma3^ seem less essential to secure such 

 records for the different parts of a large area having 

 primarily one faunal zone but the facts reveal that in 

 many cases the distribution of particular species pre- 

 sents peculiar limitations, and the recognition of these 

 is essential in any consideration of more general 

 groups. While the stud\'^ of remote and exceptional 

 localities may give more striking and immediate 

 returns an extended and systematic study of particular 

 groups must be the basis for final conclusions regard- 

 ing many of the more obscure laws. Such a study as 

 has been made of the Odonata in this state by the 

 lamented Prof. Kellicott is a good example of what is 

 needed in other groups. 



The present paper is admittedly incomplete, in fact, 

 is presented simply as a preliminary to the study of 

 this fauna which it is expected to pursue and its 

 purpose is to interest, if possible, collectors in different 

 parts of the state, without whose assistance the work 

 must necessarily be very slow. We may safely assume 

 that the fauna of the state will present some marked 

 differences if we compare the area bordering the lake 



