144 



AN ECONOMIC ENTOMOLOGY. 



Alabama, Mississippi, and Tennessee, but it seems not to be 

 very numerous. 



Brood V. occurred last in 1888 and will appear next in 1905. 

 It covers parts of Southern Wisconsin, Northern Illinois, the 

 eastern third of Iowa, the northwest counties of Indiana, and the 

 more southern part of Michigan. This brood is very numerous 

 in individuals. 



Brood VI. occurred last in 1884 and will occur again in 1897, 

 being of the thirteen-year race. It occurs in the southwestern 

 part of Mississippi and extends into Louisiana, infesting a com- 

 paratively small territory only. 



Brood VII. occurred last in 1885, and will occur again in 

 1898, being also of the thirteen-year race. It occurs in South- 

 ern Illinois, Kansas, Missouri, Georgia, Louisiana, Arkansas, 

 Mississippi, and Tennessee. 



Brood VIII. appeared last in 1889, and will appear again in 

 1906. It covers a portion of Southern Massachusetts, a large 

 part of Long Island, extends along the Atlantic Coast to the 

 Chesapeake Bay and for some distance into Pennsylvania, Ken- 

 tucky, West Virginia, Ohio, Indiana, and Illinois 



Brood IX. occurred last in 1891 and will appear again in 1908. 

 It occurs in parts of Nebraska and probably in portions of Colo- 

 rado, though it has not yet been satisfactorily limited. 



Brood X. occurred last in 1888 and will appear again in 1901, 

 being of the thirteen-year race. It has been recorded from Texas, 

 but is yet a doubtful brood, requiring fuller observations than 

 have been made to substantiate it positively. 



Brood XL occurred in 1893 ^"<i will occur again in 1910. It 

 is a large one, covering parts of North Carolina, Virginia, Mary- 

 land, Illinois, and Indiana, although not the entire State in any 

 instance. 



Brood XII. occurred last in 1894 and will make its next ap- 

 pearance in 191 1. It extends along both sides of the Hudson 

 for its full length, into Southern New York, Connecticut, through 

 the entire State of New Jersey, and into Pennsylvania, Ohio, 

 Michigan, North Carolina, Virginia, Maryland, and Delaware. 



Brood XIII. appeared in 1895 and will appear again in 1912 

 It occurs throughout a large part of Iowa, and probably a portion 

 of Illinois and Missouri. 



