1899] 



ENTOMOLOGICAL NEWS. 



137 



a direction almost directly opposite to where it already occurred in 

 Ohio, and in the county adjacent to the one in Ohio, where Mr. 

 Dury had first discovered the Phi/tonomics. From material received 

 from correspondents and from personal observations, I am led to 

 believe that, as with the Phytonomus, it was washed into the upper 



Map No. a. 



tributaries of the Ohio river and left along its course by the falling 

 stream, thus becoming established over the same territory, the out- 

 break iu Dearborn county, Indiana, originating from adults carried 

 into the lowlands about the mouth of the Big Miami river and 

 below. From this point it made its way north and eastward into 

 Ohio, meeting the south-bound tide of diffusion probably in or near 



