64 



JOURNAL OF ECOXOMIC EXTOMOLOGY 



[Vol. 9 



brood. The dots on this map are distributed to show the areas infested 

 and have no relation to the nuni])er of reports received. The squares 

 indicate the presence of swarms. The crosses report absence of the 

 cicadas. The following counties were found infested: Adams, Brown, 

 Clermont, Clinton, Fayette, Gallia, Greene, Hamilton, Highland, 



DISTRIBUTION 



OP 



PERIODICAL CICADA 



IN 



OHIO 



19 6 



Fig. 2 



Lawrence, Meigs, Morgan, Pike, Ross, Scioto, Vinton, Warren, 

 Washington. 



From the following counties, listed in Bui. 71, Bur. Ent., as occupied 

 by the brood, 1 secured no report, but in all likelihood the insects 

 appeared in some of them: Auglaize, Butler, Columbiana, Cuyahoga, 

 Delaware, Jackson, Preble. 



