43 



FIRST ANNUAL REPORT OF 



other in (lie United States in A. D. 1SG9, '70, '71, '72, '74, '75, '76, '77, '78, 

 '79, '80, '81, '82, '83, '84 and '85— or every year but 1873. It further ap- 

 pears that the number of distinct broods, appearing in distinct years, 

 within the following geographical districts, are as follows : In south- 

 ern New England 4 broods, years '69, '72, '77 and '85; in New York 5 

 broods, years '72, '77, '82, 'S3 and '85; in New Jersey 2 broods, years 

 '72 and 77; in Pennsylvania 7 broods, years '70, '71, '72, '77, 'SO, 'b3 and 

 85 ; in Ohio 7 broods, years '72, '78, '79, '80, 81, '83 and '85 ; in Indiana 

 4 broods, years '71, '76, '77 and '85; in Illinois 6 broods, years '71, '72*, 

 '76, '77, '78 and '81*, and probably another in Jo Daviess county, 

 year '70; in Wisconsin 2 broods, years '71 and '82; in Michigan 2 

 broods, years '71 and '85 ; in Iowa 2 broods, years '71 and '78; in Ne- 

 braska 1 brood, year '74 ; in Kansas 2 broods, years '7^* and '79 ; in 

 Missouri 4 broods, years '72*, 78, '79 and '81* ; in Louisiana and Mis- 

 sissippi 3 broods, years '71*, '72* and 81* ; in Tennessee 2 broods, 

 years '72* and '81* ; in Arkansas, Indian Territory and Alabama, 1 

 brood, year '81*; in Kentucky 3 broods, years '72, '81* and 85; in 

 Georgia 4 broods, years '69*, '72*, '80* and : 81* ; in South Carolina 1 

 brood, year '81* ; in North Carolina 6 broods, years '72?, '76, '77, '81?, 

 '81* and '84; in East and West Virginia 5 broods, years '72, '77, '80, 

 '81 and 84; in Maryland 4 broods, years '72, '76,77 and S5; in District 

 of Columbia 1 brood, year '85; in Delaware 2 broods, years '72 and 

 85 ; in Florida 1 brood, year 73* ; in Texas 1 brood, year 75*. 



* The broods marked (*) belong to the 13-year or tredecim race of the Periodical Cicada. 



APPLE-TREE BORERS. 



(Coleoptera, Cerambicida?.) 



THE ROUND-HEADED APPLE-TREE BORER— Saperda bivittata, Say. 



[Fig. 14.] 



It is a fact which has not been disputed by any one whom I have 

 queried on the subject, that apple trees on our ridges are shorter 

 lived than those grown on our lower lands. Hitherto no particular 

 reason has been given for this occurrence, but I think it is mainly at- 

 tributable to the workings of the borer now under consideration. I 



